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Finding the Fourth Proportional to 65,375.56, 98,043.18 and 34,193.80

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Solution

The fourth proportional to 65,375.56, 98,043.18 and 34,193.80 is: 51,280.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,375.56 : 98,043.18 = 34,193.80 : x
  2. Step 2: Convert to fraction form
    65,375.56/98,043.18 = 34,193.80/x
  3. Step 3: Cross multiply
    65,375.56x = 98,043.18 × 34,193.80
  4. Step 4: Simplify right side
    65,375.56x = 3,352,468,888.28
  5. Step 5: Solve for x
    x = 3,352,468,888.28/65,375.56
  6. Step 6: Final answer
    x = 51,280.16

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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.