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Finding the Fourth Proportional to 156,335.56, 215,855.80 and 95,988.04

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Solution

The fourth proportional to 156,335.56, 215,855.80 and 95,988.04 is: 132,532.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,335.56 : 215,855.80 = 95,988.04 : x
  2. Step 2: Convert to fraction form
    156,335.56/215,855.80 = 95,988.04/x
  3. Step 3: Cross multiply
    156,335.56x = 215,855.80 × 95,988.04
  4. Step 4: Simplify right side
    156,335.56x = 20,719,575,164.63
  5. Step 5: Solve for x
    x = 20,719,575,164.63/156,335.56
  6. Step 6: Final answer
    x = 132,532.71

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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.