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Finding the Fourth Proportional to 135,871.44, 204,036.66 and 88,566.72

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Solution

The fourth proportional to 135,871.44, 204,036.66 and 88,566.72 is: 132,999.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,871.44 : 204,036.66 = 88,566.72 : x
  2. Step 2: Convert to fraction form
    135,871.44/204,036.66 = 88,566.72/x
  3. Step 3: Cross multiply
    135,871.44x = 204,036.66 × 88,566.72
  4. Step 4: Simplify right side
    135,871.44x = 18,070,857,735.96
  5. Step 5: Solve for x
    x = 18,070,857,735.96/135,871.44
  6. Step 6: Final answer
    x = 132,999.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.