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Finding the Fourth Proportional to 137,915.88, 206,706.60 and 62,933.28

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Solution

The fourth proportional to 137,915.88, 206,706.60 and 62,933.28 is: 94,323.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,915.88 : 206,706.60 = 62,933.28 : x
  2. Step 2: Convert to fraction form
    137,915.88/206,706.60 = 62,933.28/x
  3. Step 3: Cross multiply
    137,915.88x = 206,706.60 × 62,933.28
  4. Step 4: Simplify right side
    137,915.88x = 13,008,724,335.65
  5. Step 5: Solve for x
    x = 13,008,724,335.65/137,915.88
  6. Step 6: Final answer
    x = 94,323.61

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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.