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Finding the Fourth Proportional to 91,084.71, 136,616.81 and 24,529.71

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Solution

The fourth proportional to 91,084.71, 136,616.81 and 24,529.71 is: 36,791.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,084.71 : 136,616.81 = 24,529.71 : x
  2. Step 2: Convert to fraction form
    91,084.71/136,616.81 = 24,529.71/x
  3. Step 3: Cross multiply
    91,084.71x = 136,616.81 × 24,529.71
  4. Step 4: Simplify right side
    91,084.71x = 3,351,170,607.78
  5. Step 5: Solve for x
    x = 3,351,170,607.78/91,084.71
  6. Step 6: Final answer
    x = 36,791.80

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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.