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Finding the Fourth Proportional to 79,718,404.80, 119,388,650.40 and 79,718,404.80

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Solution

The fourth proportional to 79,718,404.80, 119,388,650.40 and 79,718,404.80 is: 119,388,650.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,718,404.80 : 119,388,650.40 = 79,718,404.80 : x
  2. Step 2: Convert to fraction form
    79,718,404.80/119,388,650.40 = 79,718,404.80/x
  3. Step 3: Cross multiply
    79,718,404.80x = 119,388,650.40 × 79,718,404.80
  4. Step 4: Simplify right side
    79,718,404.80x = 9,517,472,761,112,882
  5. Step 5: Solve for x
    x = 9,517,472,761,112,882/79,718,404.80
  6. Step 6: Final answer
    x = 119,388,650.40

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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.