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Finding the Fourth Proportional to 159,874.47, 220,626.81 and 88,254.54

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Solution

The fourth proportional to 159,874.47, 220,626.81 and 88,254.54 is: 121,791.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,874.47 : 220,626.81 = 88,254.54 : x
  2. Step 2: Convert to fraction form
    159,874.47/220,626.81 = 88,254.54/x
  3. Step 3: Cross multiply
    159,874.47x = 220,626.81 × 88,254.54
  4. Step 4: Simplify right side
    159,874.47x = 19,471,317,628.22
  5. Step 5: Solve for x
    x = 19,471,317,628.22/159,874.47
  6. Step 6: Final answer
    x = 121,791.29

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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.