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Finding the Fourth Proportional to 68,685.98, 103,019.04 and 26,585.92

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Solution

The fourth proportional to 68,685.98, 103,019.04 and 26,585.92 is: 39,875.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,685.98 : 103,019.04 = 26,585.92 : x
  2. Step 2: Convert to fraction form
    68,685.98/103,019.04 = 26,585.92/x
  3. Step 3: Cross multiply
    68,685.98x = 103,019.04 × 26,585.92
  4. Step 4: Simplify right side
    68,685.98x = 2,738,856,084.69
  5. Step 5: Solve for x
    x = 2,738,856,084.69/68,685.98
  6. Step 6: Final answer
    x = 39,875.04

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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.