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Finding the Fourth Proportional to 132,437.76, 182,643.02 and 98,531.16

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Solution

The fourth proportional to 132,437.76, 182,643.02 and 98,531.16 is: 135,882.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,437.76 : 182,643.02 = 98,531.16 : x
  2. Step 2: Convert to fraction form
    132,437.76/182,643.02 = 98,531.16/x
  3. Step 3: Cross multiply
    132,437.76x = 182,643.02 × 98,531.16
  4. Step 4: Simplify right side
    132,437.76x = 17,996,028,626.50
  5. Step 5: Solve for x
    x = 17,996,028,626.50/132,437.76
  6. Step 6: Final answer
    x = 135,882.91

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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.