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Finding the Fourth Proportional to 159,652.20, 220,308.76 and 88,030.70

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Solution

The fourth proportional to 159,652.20, 220,308.76 and 88,030.70 is: 121,476.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,652.20 : 220,308.76 = 88,030.70 : x
  2. Step 2: Convert to fraction form
    159,652.20/220,308.76 = 88,030.70/x
  3. Step 3: Cross multiply
    159,652.20x = 220,308.76 × 88,030.70
  4. Step 4: Simplify right side
    159,652.20x = 19,393,934,358.93
  5. Step 5: Solve for x
    x = 19,393,934,358.93/159,652.20
  6. Step 6: Final answer
    x = 121,476.15

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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.