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Finding the Fourth Proportional to 71,158.54, 98,199.08 and 38,893.80

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Solution

The fourth proportional to 71,158.54, 98,199.08 and 38,893.80 is: 53,673.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,158.54 : 98,199.08 = 38,893.80 : x
  2. Step 2: Convert to fraction form
    71,158.54/98,199.08 = 38,893.80/x
  3. Step 3: Cross multiply
    71,158.54x = 98,199.08 × 38,893.80
  4. Step 4: Simplify right side
    71,158.54x = 3,819,335,377.70
  5. Step 5: Solve for x
    x = 3,819,335,377.70/71,158.54
  6. Step 6: Final answer
    x = 53,673.61

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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.