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Finding the Fourth Proportional to 167,561.73, 251,521.65 and 67,787.15

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Solution

The fourth proportional to 167,561.73, 251,521.65 and 67,787.15 is: 101,753.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,561.73 : 251,521.65 = 67,787.15 : x
  2. Step 2: Convert to fraction form
    167,561.73/251,521.65 = 67,787.15/x
  3. Step 3: Cross multiply
    167,561.73x = 251,521.65 × 67,787.15
  4. Step 4: Simplify right side
    167,561.73x = 17,049,934,559.19
  5. Step 5: Solve for x
    x = 17,049,934,559.19/167,561.73
  6. Step 6: Final answer
    x = 101,753.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.