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Finding the Fourth Proportional to 132,586.68, 182,972.37 and 72,160.68

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Solution

The fourth proportional to 132,586.68, 182,972.37 and 72,160.68 is: 99,583.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,586.68 : 182,972.37 = 72,160.68 : x
  2. Step 2: Convert to fraction form
    132,586.68/182,972.37 = 72,160.68/x
  3. Step 3: Cross multiply
    132,586.68x = 182,972.37 × 72,160.68
  4. Step 4: Simplify right side
    132,586.68x = 13,203,410,640.41
  5. Step 5: Solve for x
    x = 13,203,410,640.41/132,586.68
  6. Step 6: Final answer
    x = 99,583.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.