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Finding the Fourth Proportional to 159,531.55, 239,071.72 and 88,485.48

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Solution

The fourth proportional to 159,531.55, 239,071.72 and 88,485.48 is: 132,603.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,531.55 : 239,071.72 = 88,485.48 : x
  2. Step 2: Convert to fraction form
    159,531.55/239,071.72 = 88,485.48/x
  3. Step 3: Cross multiply
    159,531.55x = 239,071.72 × 88,485.48
  4. Step 4: Simplify right side
    159,531.55x = 21,154,375,898.63
  5. Step 5: Solve for x
    x = 21,154,375,898.63/159,531.55
  6. Step 6: Final answer
    x = 132,603.09

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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.