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Finding the Fourth Proportional to 135,956.52, 187,614.54 and 75,530.88

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Solution

The fourth proportional to 135,956.52, 187,614.54 and 75,530.88 is: 104,229.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,956.52 : 187,614.54 = 75,530.88 : x
  2. Step 2: Convert to fraction form
    135,956.52/187,614.54 = 75,530.88/x
  3. Step 3: Cross multiply
    135,956.52x = 187,614.54 × 75,530.88
  4. Step 4: Simplify right side
    135,956.52x = 14,170,691,307.00
  5. Step 5: Solve for x
    x = 14,170,691,307.00/135,956.52
  6. Step 6: Final answer
    x = 104,229.58

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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.