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Finding the Fourth Proportional to 71,301.78, 98,353.41 and 45,799.56

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Solution

The fourth proportional to 71,301.78, 98,353.41 and 45,799.56 is: 63,175.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,301.78 : 98,353.41 = 45,799.56 : x
  2. Step 2: Convert to fraction form
    71,301.78/98,353.41 = 45,799.56/x
  3. Step 3: Cross multiply
    71,301.78x = 98,353.41 × 45,799.56
  4. Step 4: Simplify right side
    71,301.78x = 4,504,542,902.50
  5. Step 5: Solve for x
    x = 4,504,542,902.50/71,301.78
  6. Step 6: Final answer
    x = 63,175.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.