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Finding the Fourth Proportional to 79,261,720.30, 118,892,580.45 and 79,261,720.30

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Solution

The fourth proportional to 79,261,720.30, 118,892,580.45 and 79,261,720.30 is: 118,892,580.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,261,720.30 : 118,892,580.45 = 79,261,720.30 : x
  2. Step 2: Convert to fraction form
    79,261,720.30/118,892,580.45 = 79,261,720.30/x
  3. Step 3: Cross multiply
    79,261,720.30x = 118,892,580.45 × 79,261,720.30
  4. Step 4: Simplify right side
    79,261,720.30x = 9,423,630,457,373,148
  5. Step 5: Solve for x
    x = 9,423,630,457,373,148/79,261,720.30
  6. Step 6: Final answer
    x = 118,892,580.45

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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.