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Finding the Fourth Proportional to 71,348.80, 98,447.24 and 43,053.88

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Solution

The fourth proportional to 71,348.80, 98,447.24 and 43,053.88 is: 59,405.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,348.80 : 98,447.24 = 43,053.88 : x
  2. Step 2: Convert to fraction form
    71,348.80/98,447.24 = 43,053.88/x
  3. Step 3: Cross multiply
    71,348.80x = 98,447.24 × 43,053.88
  4. Step 4: Simplify right side
    71,348.80x = 4,238,535,657.29
  5. Step 5: Solve for x
    x = 4,238,535,657.29/71,348.80
  6. Step 6: Final answer
    x = 59,405.84

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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.