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Finding the Fourth Proportional to 68,470.92, 102,686.76 and 26,348.04

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Solution

The fourth proportional to 68,470.92, 102,686.76 and 26,348.04 is: 39,514.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,470.92 : 102,686.76 = 26,348.04 : x
  2. Step 2: Convert to fraction form
    68,470.92/102,686.76 = 26,348.04/x
  3. Step 3: Cross multiply
    68,470.92x = 102,686.76 × 26,348.04
  4. Step 4: Simplify right side
    68,470.92x = 2,705,594,859.95
  5. Step 5: Solve for x
    x = 2,705,594,859.95/68,470.92
  6. Step 6: Final answer
    x = 39,514.51

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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.