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Finding the Fourth Proportional to 132,512.76, 182,865.81 and 72,082.11

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Solution

The fourth proportional to 132,512.76, 182,865.81 and 72,082.11 is: 99,472.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,512.76 : 182,865.81 = 72,082.11 : x
  2. Step 2: Convert to fraction form
    132,512.76/182,865.81 = 72,082.11/x
  3. Step 3: Cross multiply
    132,512.76x = 182,865.81 × 72,082.11
  4. Step 4: Simplify right side
    132,512.76x = 13,181,353,431.66
  5. Step 5: Solve for x
    x = 13,181,353,431.66/132,512.76
  6. Step 6: Final answer
    x = 99,472.33

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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.