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Finding the Fourth Proportional to 79,791,472.80, 119,388,610.80 and 52,917,616.80

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Solution

The fourth proportional to 79,791,472.80, 119,388,610.80 and 52,917,616.80 is: 79,178,395.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,791,472.80 : 119,388,610.80 = 52,917,616.80 : x
  2. Step 2: Convert to fraction form
    79,791,472.80/119,388,610.80 = 52,917,616.80/x
  3. Step 3: Cross multiply
    79,791,472.80x = 119,388,610.80 × 52,917,616.80
  4. Step 4: Simplify right side
    79,791,472.80x = 6,317,760,756,598,741
  5. Step 5: Solve for x
    x = 6,317,760,756,598,741/79,791,472.80
  6. Step 6: Final answer
    x = 79,178,395.07

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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.