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Finding the Fourth Proportional to 71,474.01, 98,638.61 and 41,264.87

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Solution

The fourth proportional to 71,474.01, 98,638.61 and 41,264.87 is: 56,948.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,474.01 : 98,638.61 = 41,264.87 : x
  2. Step 2: Convert to fraction form
    71,474.01/98,638.61 = 41,264.87/x
  3. Step 3: Cross multiply
    71,474.01x = 98,638.61 × 41,264.87
  4. Step 4: Simplify right side
    71,474.01x = 4,070,308,719.11
  5. Step 5: Solve for x
    x = 4,070,308,719.11/71,474.01
  6. Step 6: Final answer
    x = 56,948.10

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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.