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Finding the Fourth Proportional to 132,595.60, 182,986.42 and 72,168.44

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Solution

The fourth proportional to 132,595.60, 182,986.42 and 72,168.44 is: 99,594.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,595.60 : 182,986.42 = 72,168.44 : x
  2. Step 2: Convert to fraction form
    132,595.60/182,986.42 = 72,168.44/x
  3. Step 3: Cross multiply
    132,595.60x = 182,986.42 × 72,168.44
  4. Step 4: Simplify right side
    132,595.60x = 13,205,843,309.57
  5. Step 5: Solve for x
    x = 13,205,843,309.57/132,595.60
  6. Step 6: Final answer
    x = 99,594.88

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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.