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Finding the Fourth Proportional to 132,357.78, 182,652.03 and 71,926.92

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Solution

The fourth proportional to 132,357.78, 182,652.03 and 71,926.92 is: 99,258.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,357.78 : 182,652.03 = 71,926.92 : x
  2. Step 2: Convert to fraction form
    132,357.78/182,652.03 = 71,926.92/x
  3. Step 3: Cross multiply
    132,357.78x = 182,652.03 × 71,926.92
  4. Step 4: Simplify right side
    132,357.78x = 13,137,597,949.65
  5. Step 5: Solve for x
    x = 13,137,597,949.65/132,357.78
  6. Step 6: Final answer
    x = 99,258.22

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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.