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Finding the Fourth Proportional to 79,703,997.30, 119,367,039.15 and 79,703,997.30

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Solution

The fourth proportional to 79,703,997.30, 119,367,039.15 and 79,703,997.30 is: 119,367,039.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,703,997.30 : 119,367,039.15 = 79,703,997.30 : x
  2. Step 2: Convert to fraction form
    79,703,997.30/119,367,039.15 = 79,703,997.30/x
  3. Step 3: Cross multiply
    79,703,997.30x = 119,367,039.15 × 79,703,997.30
  4. Step 4: Simplify right side
    79,703,997.30x = 9,514,030,166,120,594
  5. Step 5: Solve for x
    x = 9,514,030,166,120,594/79,703,997.30
  6. Step 6: Final answer
    x = 119,367,039.15

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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.