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Finding the Fourth Proportional to 50,975,999.70, 76,463,999.55 and 45,402,162.90

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Solution

The fourth proportional to 50,975,999.70, 76,463,999.55 and 45,402,162.90 is: 68,103,244.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,975,999.70 : 76,463,999.55 = 45,402,162.90 : x
  2. Step 2: Convert to fraction form
    50,975,999.70/76,463,999.55 = 45,402,162.90/x
  3. Step 3: Cross multiply
    50,975,999.70x = 76,463,999.55 × 45,402,162.90
  4. Step 4: Simplify right side
    50,975,999.70x = 3,471,630,963,554,626.50
  5. Step 5: Solve for x
    x = 3,471,630,963,554,626.50/50,975,999.70
  6. Step 6: Final answer
    x = 68,103,244.35

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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.