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Finding the Fourth Proportional to 68,799.28, 103,294.56 and 35,543.92

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Solution

The fourth proportional to 68,799.28, 103,294.56 and 35,543.92 is: 53,365.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,799.28 : 103,294.56 = 35,543.92 : x
  2. Step 2: Convert to fraction form
    68,799.28/103,294.56 = 35,543.92/x
  3. Step 3: Cross multiply
    68,799.28x = 103,294.56 × 35,543.92
  4. Step 4: Simplify right side
    68,799.28x = 3,671,493,577.08
  5. Step 5: Solve for x
    x = 3,671,493,577.08/68,799.28
  6. Step 6: Final answer
    x = 53,365.29

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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.