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Finding the Fourth Proportional to 110,657.84, 166,232.28 and 68,569.04

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Solution

The fourth proportional to 110,657.84, 166,232.28 and 68,569.04 is: 103,005.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,657.84 : 166,232.28 = 68,569.04 : x
  2. Step 2: Convert to fraction form
    110,657.84/166,232.28 = 68,569.04/x
  3. Step 3: Cross multiply
    110,657.84x = 166,232.28 × 68,569.04
  4. Step 4: Simplify right side
    110,657.84x = 11,398,387,856.61
  5. Step 5: Solve for x
    x = 11,398,387,856.61/110,657.84
  6. Step 6: Final answer
    x = 103,005.70

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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.