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Finding the Fourth Proportional to 68,608.60, 102,767.10 and 56,944.60

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Solution

The fourth proportional to 68,608.60, 102,767.10 and 56,944.60 is: 85,295.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,608.60 : 102,767.10 = 56,944.60 : x
  2. Step 2: Convert to fraction form
    68,608.60/102,767.10 = 56,944.60/x
  3. Step 3: Cross multiply
    68,608.60x = 102,767.10 × 56,944.60
  4. Step 4: Simplify right side
    68,608.60x = 5,852,031,402.66
  5. Step 5: Solve for x
    x = 5,852,031,402.66/68,608.60
  6. Step 6: Final answer
    x = 85,295.89

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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.