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Finding the Fourth Proportional to 71,798.88, 98,953.26 and 58,414.44

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Solution

The fourth proportional to 71,798.88, 98,953.26 and 58,414.44 is: 80,506.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,798.88 : 98,953.26 = 58,414.44 : x
  2. Step 2: Convert to fraction form
    71,798.88/98,953.26 = 58,414.44/x
  3. Step 3: Cross multiply
    71,798.88x = 98,953.26 × 58,414.44
  4. Step 4: Simplify right side
    71,798.88x = 5,780,299,269.07
  5. Step 5: Solve for x
    x = 5,780,299,269.07/71,798.88
  6. Step 6: Final answer
    x = 80,506.82

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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.