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Finding the Fourth Proportional to 132,406.31, 182,724.49 and 80,726.39

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Solution

The fourth proportional to 132,406.31, 182,724.49 and 80,726.39 is: 111,404.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,406.31 : 182,724.49 = 80,726.39 : x
  2. Step 2: Convert to fraction form
    132,406.31/182,724.49 = 80,726.39/x
  3. Step 3: Cross multiply
    132,406.31x = 182,724.49 × 80,726.39
  4. Step 4: Simplify right side
    132,406.31x = 14,750,688,442.29
  5. Step 5: Solve for x
    x = 14,750,688,442.29/132,406.31
  6. Step 6: Final answer
    x = 111,404.72

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