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Finding the Fourth Proportional to 159,793.92, 220,515.44 and 88,173.92

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Solution

The fourth proportional to 159,793.92, 220,515.44 and 88,173.92 is: 121,679.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,793.92 : 220,515.44 = 88,173.92 : x
  2. Step 2: Convert to fraction form
    159,793.92/220,515.44 = 88,173.92/x
  3. Step 3: Cross multiply
    159,793.92x = 220,515.44 × 88,173.92
  4. Step 4: Simplify right side
    159,793.92x = 19,443,710,765.32
  5. Step 5: Solve for x
    x = 19,443,710,765.32/159,793.92
  6. Step 6: Final answer
    x = 121,679.92

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1.5x scale

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.