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Finding the Fourth Proportional to 159,766.65, 220,478.00 and 88,146.84

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Solution

The fourth proportional to 159,766.65, 220,478.00 and 88,146.84 is: 121,642.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,766.65 : 220,478.00 = 88,146.84 : x
  2. Step 2: Convert to fraction form
    159,766.65/220,478.00 = 88,146.84/x
  3. Step 3: Cross multiply
    159,766.65x = 220,478.00 × 88,146.84
  4. Step 4: Simplify right side
    159,766.65x = 19,434,438,548.79
  5. Step 5: Solve for x
    x = 19,434,438,548.79/159,766.65
  6. Step 6: Final answer
    x = 121,642.65

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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.