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Finding the Fourth Proportional to 71,240.88, 98,761.99 and 67,448.86

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Solution

The fourth proportional to 71,240.88, 98,761.99 and 67,448.86 is: 93,505.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,240.88 : 98,761.99 = 67,448.86 : x
  2. Step 2: Convert to fraction form
    71,240.88/98,761.99 = 67,448.86/x
  3. Step 3: Cross multiply
    71,240.88x = 98,761.99 × 67,448.86
  4. Step 4: Simplify right side
    71,240.88x = 6,661,383,636.83
  5. Step 5: Solve for x
    x = 6,661,383,636.83/71,240.88
  6. Step 6: Final answer
    x = 93,505.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.