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Finding the Fourth Proportional to 260,962.80, 391,444.20 and 94,729.20

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Solution

The fourth proportional to 260,962.80, 391,444.20 and 94,729.20 is: 142,093.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,962.80 : 391,444.20 = 94,729.20 : x
  2. Step 2: Convert to fraction form
    260,962.80/391,444.20 = 94,729.20/x
  3. Step 3: Cross multiply
    260,962.80x = 391,444.20 × 94,729.20
  4. Step 4: Simplify right side
    260,962.80x = 37,081,195,910.64
  5. Step 5: Solve for x
    x = 37,081,195,910.64/260,962.80
  6. Step 6: Final answer
    x = 142,093.80

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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.