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Finding the Fourth Proportional to 137,540.91, 206,312.12 and 62,608.65

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Solution

The fourth proportional to 137,540.91, 206,312.12 and 62,608.65 is: 93,913.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,540.91 : 206,312.12 = 62,608.65 : x
  2. Step 2: Convert to fraction form
    137,540.91/206,312.12 = 62,608.65/x
  3. Step 3: Cross multiply
    137,540.91x = 206,312.12 × 62,608.65
  4. Step 4: Simplify right side
    137,540.91x = 12,916,923,311.84
  5. Step 5: Solve for x
    x = 12,916,923,311.84/137,540.91
  6. Step 6: Final answer
    x = 93,913.32

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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.