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Finding the Fourth Proportional to 124,732.74, 187,232.31 and 53,690.56

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Solution

The fourth proportional to 124,732.74, 187,232.31 and 53,690.56 is: 80,593.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,732.74 : 187,232.31 = 53,690.56 : x
  2. Step 2: Convert to fraction form
    124,732.74/187,232.31 = 53,690.56/x
  3. Step 3: Cross multiply
    124,732.74x = 187,232.31 × 53,690.56
  4. Step 4: Simplify right side
    124,732.74x = 10,052,607,573.99
  5. Step 5: Solve for x
    x = 10,052,607,573.99/124,732.74
  6. Step 6: Final answer
    x = 80,593.18

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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.