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Finding the Fourth Proportional to 148,672.26, 223,087.77 and 69,787.17

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Solution

The fourth proportional to 148,672.26, 223,087.77 and 69,787.17 is: 104,718.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,672.26 : 223,087.77 = 69,787.17 : x
  2. Step 2: Convert to fraction form
    148,672.26/223,087.77 = 69,787.17/x
  3. Step 3: Cross multiply
    148,672.26x = 223,087.77 × 69,787.17
  4. Step 4: Simplify right side
    148,672.26x = 15,568,664,129.91
  5. Step 5: Solve for x
    x = 15,568,664,129.91/148,672.26
  6. Step 6: Final answer
    x = 104,718.02

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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.