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Finding the Fourth Proportional to 79,487,659.80, 119,231,489.70 and 24,904,805.40

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Solution

The fourth proportional to 79,487,659.80, 119,231,489.70 and 24,904,805.40 is: 37,357,208.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,487,659.80 : 119,231,489.70 = 24,904,805.40 : x
  2. Step 2: Convert to fraction form
    79,487,659.80/119,231,489.70 = 24,904,805.40/x
  3. Step 3: Cross multiply
    79,487,659.80x = 119,231,489.70 × 24,904,805.40
  4. Step 4: Simplify right side
    79,487,659.80x = 2,969,437,048,530,604.50
  5. Step 5: Solve for x
    x = 2,969,437,048,530,604.50/79,487,659.80
  6. Step 6: Final answer
    x = 37,357,208.10

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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.