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Finding the Fourth Proportional to 91,731.60, 137,532.60 and 41,835.60

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Solution

The fourth proportional to 91,731.60, 137,532.60 and 41,835.60 is: 62,723.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,731.60 : 137,532.60 = 41,835.60 : x
  2. Step 2: Convert to fraction form
    91,731.60/137,532.60 = 41,835.60/x
  3. Step 3: Cross multiply
    91,731.60x = 137,532.60 × 41,835.60
  4. Step 4: Simplify right side
    91,731.60x = 5,753,758,840.56
  5. Step 5: Solve for x
    x = 5,753,758,840.56/91,731.60
  6. Step 6: Final answer
    x = 62,723.85

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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.