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Finding the Fourth Proportional to 88,691,839.30, 133,037,758.95 and 48,381,055.30

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Solution

The fourth proportional to 88,691,839.30, 133,037,758.95 and 48,381,055.30 is: 72,571,582.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,691,839.30 : 133,037,758.95 = 48,381,055.30 : x
  2. Step 2: Convert to fraction form
    88,691,839.30/133,037,758.95 = 48,381,055.30/x
  3. Step 3: Cross multiply
    88,691,839.30x = 133,037,758.95 × 48,381,055.30
  4. Step 4: Simplify right side
    88,691,839.30x = 6,436,507,172,748,020
  5. Step 5: Solve for x
    x = 6,436,507,172,748,020/88,691,839.30
  6. Step 6: Final answer
    x = 72,571,582.95

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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.