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Finding the Fourth Proportional to 159,877.64, 220,629.96 and 88,257.64

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Solution

The fourth proportional to 159,877.64, 220,629.96 and 88,257.64 is: 121,794.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,877.64 : 220,629.96 = 88,257.64 : x
  2. Step 2: Convert to fraction form
    159,877.64/220,629.96 = 88,257.64/x
  3. Step 3: Cross multiply
    159,877.64x = 220,629.96 × 88,257.64
  4. Step 4: Simplify right side
    159,877.64x = 19,472,279,582.89
  5. Step 5: Solve for x
    x = 19,472,279,582.89/159,877.64
  6. Step 6: Final answer
    x = 121,794.89

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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.