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Finding the Fourth Proportional to 132,425.52, 182,747.20 and 72,809.52

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Solution

The fourth proportional to 132,425.52, 182,747.20 and 72,809.52 is: 100,477.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,425.52 : 182,747.20 = 72,809.52 : x
  2. Step 2: Convert to fraction form
    132,425.52/182,747.20 = 72,809.52/x
  3. Step 3: Cross multiply
    132,425.52x = 182,747.20 × 72,809.52
  4. Step 4: Simplify right side
    132,425.52x = 13,305,735,913.34
  5. Step 5: Solve for x
    x = 13,305,735,913.34/132,425.52
  6. Step 6: Final answer
    x = 100,477.13

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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.