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Finding the Fourth Proportional to 68,999.16, 103,292.46 and 42,260.97

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Solution

The fourth proportional to 68,999.16, 103,292.46 and 42,260.97 is: 63,265.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,999.16 : 103,292.46 = 42,260.97 : x
  2. Step 2: Convert to fraction form
    68,999.16/103,292.46 = 42,260.97/x
  3. Step 3: Cross multiply
    68,999.16x = 103,292.46 × 42,260.97
  4. Step 4: Simplify right side
    68,999.16x = 4,365,239,553.29
  5. Step 5: Solve for x
    x = 4,365,239,553.29/68,999.16
  6. Step 6: Final answer
    x = 63,265.11

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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.