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Finding the Fourth Proportional to 83,980.44, 125,899.20 and 37,207.80

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Solution

The fourth proportional to 83,980.44, 125,899.20 and 37,207.80 is: 55,780.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,980.44 : 125,899.20 = 37,207.80 : x
  2. Step 2: Convert to fraction form
    83,980.44/125,899.20 = 37,207.80/x
  3. Step 3: Cross multiply
    83,980.44x = 125,899.20 × 37,207.80
  4. Step 4: Simplify right side
    83,980.44x = 4,684,432,253.76
  5. Step 5: Solve for x
    x = 4,684,432,253.76/83,980.44
  6. Step 6: Final answer
    x = 55,780.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.