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Finding the Fourth Proportional to 51,291,630,820.80, 76,937,446,231.20 and 51,291,630,820.80

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Solution

The fourth proportional to 51,291,630,820.80, 76,937,446,231.20 and 51,291,630,820.80 is: 76,937,446,231.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,291,630,820.80 : 76,937,446,231.20 = 51,291,630,820.80 : x
  2. Step 2: Convert to fraction form
    51,291,630,820.80/76,937,446,231.20 = 51,291,630,820.80/x
  3. Step 3: Cross multiply
    51,291,630,820.80x = 76,937,446,231.20 × 51,291,630,820.80
  4. Step 4: Simplify right side
    51,291,630,820.80x = 3,946,247,088,385,860,567,040
  5. Step 5: Solve for x
    x = 3,946,247,088,385,860,567,040/51,291,630,820.80
  6. Step 6: Final answer
    x = 76,937,446,231.20

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.