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Finding the Fourth Proportional to 159,898.48, 220,660.23 and 88,278.64

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Solution

The fourth proportional to 159,898.48, 220,660.23 and 88,278.64 is: 121,824.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,898.48 : 220,660.23 = 88,278.64 : x
  2. Step 2: Convert to fraction form
    159,898.48/220,660.23 = 88,278.64/x
  3. Step 3: Cross multiply
    159,898.48x = 220,660.23 × 88,278.64
  4. Step 4: Simplify right side
    159,898.48x = 19,479,585,006.49
  5. Step 5: Solve for x
    x = 19,479,585,006.49/159,898.48
  6. Step 6: Final answer
    x = 121,824.70

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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.