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Finding the Fourth Proportional to 159,552.74, 220,182.78 and 87,932.76

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Solution

The fourth proportional to 159,552.74, 220,182.78 and 87,932.76 is: 121,347.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,552.74 : 220,182.78 = 87,932.76 : x
  2. Step 2: Convert to fraction form
    159,552.74/220,182.78 = 87,932.76/x
  3. Step 3: Cross multiply
    159,552.74x = 220,182.78 × 87,932.76
  4. Step 4: Simplify right side
    159,552.74x = 19,361,279,549.87
  5. Step 5: Solve for x
    x = 19,361,279,549.87/159,552.74
  6. Step 6: Final answer
    x = 121,347.21

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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.