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Finding the Fourth Proportional to 260,752.44, 391,125.35 and 83,257.20

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Solution

The fourth proportional to 260,752.44, 391,125.35 and 83,257.20 is: 124,884.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,752.44 : 391,125.35 = 83,257.20 : x
  2. Step 2: Convert to fraction form
    260,752.44/391,125.35 = 83,257.20/x
  3. Step 3: Cross multiply
    260,752.44x = 391,125.35 × 83,257.20
  4. Step 4: Simplify right side
    260,752.44x = 32,563,999,534.39
  5. Step 5: Solve for x
    x = 32,563,999,534.39/260,752.44
  6. Step 6: Final answer
    x = 124,884.74

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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.