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Finding the Fourth Proportional to 71,365.44, 98,264.46 and 63,393.84

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Solution

The fourth proportional to 71,365.44, 98,264.46 and 63,393.84 is: 87,288.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,365.44 : 98,264.46 = 63,393.84 : x
  2. Step 2: Convert to fraction form
    71,365.44/98,264.46 = 63,393.84/x
  3. Step 3: Cross multiply
    71,365.44x = 98,264.46 × 63,393.84
  4. Step 4: Simplify right side
    71,365.44x = 6,229,361,454.93
  5. Step 5: Solve for x
    x = 6,229,361,454.93/71,365.44
  6. Step 6: Final answer
    x = 87,288.21

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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.