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Finding the Fourth Proportional to 159,863.76, 220,617.54 and 88,246.44

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Solution

The fourth proportional to 159,863.76, 220,617.54 and 88,246.44 is: 121,783.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,863.76 : 220,617.54 = 88,246.44 : x
  2. Step 2: Convert to fraction form
    159,863.76/220,617.54 = 88,246.44/x
  3. Step 3: Cross multiply
    159,863.76x = 220,617.54 × 88,246.44
  4. Step 4: Simplify right side
    159,863.76x = 19,468,712,506.56
  5. Step 5: Solve for x
    x = 19,468,712,506.56/159,863.76
  6. Step 6: Final answer
    x = 121,783.15

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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.