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Finding the Fourth Proportional to 123,797,839.80, 185,696,759.70 and 106,791,727.80

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Solution

The fourth proportional to 123,797,839.80, 185,696,759.70 and 106,791,727.80 is: 160,187,591.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,797,839.80 : 185,696,759.70 = 106,791,727.80 : x
  2. Step 2: Convert to fraction form
    123,797,839.80/185,696,759.70 = 106,791,727.80/x
  3. Step 3: Cross multiply
    123,797,839.80x = 185,696,759.70 × 106,791,727.80
  4. Step 4: Simplify right side
    123,797,839.80x = 19,830,877,815,224,408
  5. Step 5: Solve for x
    x = 19,830,877,815,224,408/123,797,839.80
  6. Step 6: Final answer
    x = 160,187,591.70

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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.