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Finding the Fourth Proportional to 159,776.73, 220,493.07 and 88,159.41

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Solution

The fourth proportional to 159,776.73, 220,493.07 and 88,159.41 is: 121,660.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,776.73 : 220,493.07 = 88,159.41 : x
  2. Step 2: Convert to fraction form
    159,776.73/220,493.07 = 88,159.41/x
  3. Step 3: Cross multiply
    159,776.73x = 220,493.07 × 88,159.41
  4. Step 4: Simplify right side
    159,776.73x = 19,438,538,960.29
  5. Step 5: Solve for x
    x = 19,438,538,960.29/159,776.73
  6. Step 6: Final answer
    x = 121,660.64

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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.