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Finding the Fourth Proportional to 71,671.55, 98,918.15 and 41,475.20

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Solution

The fourth proportional to 71,671.55, 98,918.15 and 41,475.20 is: 57,242.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,671.55 : 98,918.15 = 41,475.20 : x
  2. Step 2: Convert to fraction form
    71,671.55/98,918.15 = 41,475.20/x
  3. Step 3: Cross multiply
    71,671.55x = 98,918.15 × 41,475.20
  4. Step 4: Simplify right side
    71,671.55x = 4,102,649,352.91
  5. Step 5: Solve for x
    x = 4,102,649,352.91/71,671.55
  6. Step 6: Final answer
    x = 57,242.37

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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.