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Finding the Fourth Proportional to 159,659.16, 220,324.59 and 88,042.20

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Solution

The fourth proportional to 159,659.16, 220,324.59 and 88,042.20 is: 121,495.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,659.16 : 220,324.59 = 88,042.20 : x
  2. Step 2: Convert to fraction form
    159,659.16/220,324.59 = 88,042.20/x
  3. Step 3: Cross multiply
    159,659.16x = 220,324.59 × 88,042.20
  4. Step 4: Simplify right side
    159,659.16x = 19,397,861,617.70
  5. Step 5: Solve for x
    x = 19,397,861,617.70/159,659.16
  6. Step 6: Final answer
    x = 121,495.45

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1.5x scale

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.