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Finding the Fourth Proportional to 169,787.96, 254,331.98 and 99,454.04

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Solution

The fourth proportional to 169,787.96, 254,331.98 and 99,454.04 is: 148,976.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,787.96 : 254,331.98 = 99,454.04 : x
  2. Step 2: Convert to fraction form
    169,787.96/254,331.98 = 99,454.04/x
  3. Step 3: Cross multiply
    169,787.96x = 254,331.98 × 99,454.04
  4. Step 4: Simplify right side
    169,787.96x = 25,294,342,912.20
  5. Step 5: Solve for x
    x = 25,294,342,912.20/169,787.96
  6. Step 6: Final answer
    x = 148,976.07

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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.