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Finding the Fourth Proportional to 159,654.87, 220,322.30 and 88,035.48

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Solution

The fourth proportional to 159,654.87, 220,322.30 and 88,035.48 is: 121,488.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,654.87 : 220,322.30 = 88,035.48 : x
  2. Step 2: Convert to fraction form
    159,654.87/220,322.30 = 88,035.48/x
  3. Step 3: Cross multiply
    159,654.87x = 220,322.30 × 88,035.48
  4. Step 4: Simplify right side
    159,654.87x = 19,396,178,995.03
  5. Step 5: Solve for x
    x = 19,396,178,995.03/159,654.87
  6. Step 6: Final answer
    x = 121,488.18

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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.