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Finding the Fourth Proportional to 91,522.38, 137,286 and 29,192.88

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Solution

The fourth proportional to 91,522.38, 137,286 and 29,192.88 is: 43,790.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,522.38 : 137,286 = 29,192.88 : x
  2. Step 2: Convert to fraction form
    91,522.38/137,286 = 29,192.88/x
  3. Step 3: Cross multiply
    91,522.38x = 137,286 × 29,192.88
  4. Step 4: Simplify right side
    91,522.38x = 4,007,773,723.68
  5. Step 5: Solve for x
    x = 4,007,773,723.68/91,522.38
  6. Step 6: Final answer
    x = 43,790.10

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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.