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Finding the Fourth Proportional to 260,863.80, 391,449.30 and 94,630.20

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Solution

The fourth proportional to 260,863.80, 391,449.30 and 94,630.20 is: 142,001.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,863.80 : 391,449.30 = 94,630.20 : x
  2. Step 2: Convert to fraction form
    260,863.80/391,449.30 = 94,630.20/x
  3. Step 3: Cross multiply
    260,863.80x = 391,449.30 × 94,630.20
  4. Step 4: Simplify right side
    260,863.80x = 37,042,925,548.86
  5. Step 5: Solve for x
    x = 37,042,925,548.86/260,863.80
  6. Step 6: Final answer
    x = 142,001.02

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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.