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Finding the Fourth Proportional to 79,149,028.30, 118,723,542.45 and 79,149,028.30

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Solution

The fourth proportional to 79,149,028.30, 118,723,542.45 and 79,149,028.30 is: 118,723,542.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,149,028.30 : 118,723,542.45 = 79,149,028.30 : x
  2. Step 2: Convert to fraction form
    79,149,028.30/118,723,542.45 = 79,149,028.30/x
  3. Step 3: Cross multiply
    79,149,028.30x = 118,723,542.45 × 79,149,028.30
  4. Step 4: Simplify right side
    79,149,028.30x = 9,396,853,021,251,302
  5. Step 5: Solve for x
    x = 9,396,853,021,251,302/79,149,028.30
  6. Step 6: Final answer
    x = 118,723,542.45

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Double scale
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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.