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Finding the Fourth Proportional to 159,866.53, 220,617.63 and 88,246.59

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Solution

The fourth proportional to 159,866.53, 220,617.63 and 88,246.59 is: 121,781.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,866.53 : 220,617.63 = 88,246.59 : x
  2. Step 2: Convert to fraction form
    159,866.53/220,617.63 = 88,246.59/x
  3. Step 3: Cross multiply
    159,866.53x = 220,617.63 × 88,246.59
  4. Step 4: Simplify right side
    159,866.53x = 19,468,752,438.29
  5. Step 5: Solve for x
    x = 19,468,752,438.29/159,866.53
  6. Step 6: Final answer
    x = 121,781.29

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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.