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Finding the Fourth Proportional to 73,896,453.20, 110,844,679.80 and 72,006,885.20

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Solution

The fourth proportional to 73,896,453.20, 110,844,679.80 and 72,006,885.20 is: 108,010,327.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,896,453.20 : 110,844,679.80 = 72,006,885.20 : x
  2. Step 2: Convert to fraction form
    73,896,453.20/110,844,679.80 = 72,006,885.20/x
  3. Step 3: Cross multiply
    73,896,453.20x = 110,844,679.80 × 72,006,885.20
  4. Step 4: Simplify right side
    73,896,453.20x = 7,981,580,133,389,359
  5. Step 5: Solve for x
    x = 7,981,580,133,389,359/73,896,453.20
  6. Step 6: Final answer
    x = 108,010,327.80

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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.