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Finding the Fourth Proportional to 159,678.48, 220,352.40 and 88,057.20

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Solution

The fourth proportional to 159,678.48, 220,352.40 and 88,057.20 is: 121,516.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,678.48 : 220,352.40 = 88,057.20 : x
  2. Step 2: Convert to fraction form
    159,678.48/220,352.40 = 88,057.20/x
  3. Step 3: Cross multiply
    159,678.48x = 220,352.40 × 88,057.20
  4. Step 4: Simplify right side
    159,678.48x = 19,403,615,357.28
  5. Step 5: Solve for x
    x = 19,403,615,357.28/159,678.48
  6. Step 6: Final answer
    x = 121,516.78

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.