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Finding the Fourth Proportional to 71,508.75, 98,686.79 and 41,295.34

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Solution

The fourth proportional to 71,508.75, 98,686.79 and 41,295.34 is: 56,990.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,508.75 : 98,686.79 = 41,295.34 : x
  2. Step 2: Convert to fraction form
    71,508.75/98,686.79 = 41,295.34/x
  3. Step 3: Cross multiply
    71,508.75x = 98,686.79 × 41,295.34
  4. Step 4: Simplify right side
    71,508.75x = 4,075,304,340.08
  5. Step 5: Solve for x
    x = 4,075,304,340.08/71,508.75
  6. Step 6: Final answer
    x = 56,990.29

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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.