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Finding the Fourth Proportional to 68,560.80, 102,792.60 and 26,424.60

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Solution

The fourth proportional to 68,560.80, 102,792.60 and 26,424.60 is: 39,618.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,560.80 : 102,792.60 = 26,424.60 : x
  2. Step 2: Convert to fraction form
    68,560.80/102,792.60 = 26,424.60/x
  3. Step 3: Cross multiply
    68,560.80x = 102,792.60 × 26,424.60
  4. Step 4: Simplify right side
    68,560.80x = 2,716,253,337.96
  5. Step 5: Solve for x
    x = 2,716,253,337.96/68,560.80
  6. Step 6: Final answer
    x = 39,618.17

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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.