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Finding the Fourth Proportional to 71,347.43, 98,239.64 and 63,375.82

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Solution

The fourth proportional to 71,347.43, 98,239.64 and 63,375.82 is: 87,263.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,347.43 : 98,239.64 = 63,375.82 : x
  2. Step 2: Convert to fraction form
    71,347.43/98,239.64 = 63,375.82/x
  3. Step 3: Cross multiply
    71,347.43x = 98,239.64 × 63,375.82
  4. Step 4: Simplify right side
    71,347.43x = 6,226,017,179.03
  5. Step 5: Solve for x
    x = 6,226,017,179.03/71,347.43
  6. Step 6: Final answer
    x = 87,263.37

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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.