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Finding the Fourth Proportional to 159,678.82, 220,352.43 and 88,057.54

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Solution

The fourth proportional to 159,678.82, 220,352.43 and 88,057.54 is: 121,517.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,678.82 : 220,352.43 = 88,057.54 : x
  2. Step 2: Convert to fraction form
    159,678.82/220,352.43 = 88,057.54/x
  3. Step 3: Cross multiply
    159,678.82x = 220,352.43 × 88,057.54
  4. Step 4: Simplify right side
    159,678.82x = 19,403,692,918.82
  5. Step 5: Solve for x
    x = 19,403,692,918.82/159,678.82
  6. Step 6: Final answer
    x = 121,517.01

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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.