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Finding the Fourth Proportional to 71,208.78, 98,348.88 and 48,508.44

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Solution

The fourth proportional to 71,208.78, 98,348.88 and 48,508.44 is: 66,996.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,208.78 : 98,348.88 = 48,508.44 : x
  2. Step 2: Convert to fraction form
    71,208.78/98,348.88 = 48,508.44/x
  3. Step 3: Cross multiply
    71,208.78x = 98,348.88 × 48,508.44
  4. Step 4: Simplify right side
    71,208.78x = 4,770,750,744.55
  5. Step 5: Solve for x
    x = 4,770,750,744.55/71,208.78
  6. Step 6: Final answer
    x = 66,996.66

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1.5x scale

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.