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Finding the Fourth Proportional to 159,734.70, 220,435.20 and 88,117.20

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Solution

The fourth proportional to 159,734.70, 220,435.20 and 88,117.20 is: 121,602.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,734.70 : 220,435.20 = 88,117.20 : x
  2. Step 2: Convert to fraction form
    159,734.70/220,435.20 = 88,117.20/x
  3. Step 3: Cross multiply
    159,734.70x = 220,435.20 × 88,117.20
  4. Step 4: Simplify right side
    159,734.70x = 19,424,132,605.44
  5. Step 5: Solve for x
    x = 19,424,132,605.44/159,734.70
  6. Step 6: Final answer
    x = 121,602.46

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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.