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Finding the Fourth Proportional to 261,006.60, 391,568.13 and 83,524.26

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Solution

The fourth proportional to 261,006.60, 391,568.13 and 83,524.26 is: 125,305.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,006.60 : 391,568.13 = 83,524.26 : x
  2. Step 2: Convert to fraction form
    261,006.60/391,568.13 = 83,524.26/x
  3. Step 3: Cross multiply
    261,006.60x = 391,568.13 × 83,524.26
  4. Step 4: Simplify right side
    261,006.60x = 32,705,438,297.83
  5. Step 5: Solve for x
    x = 32,705,438,297.83/261,006.60
  6. Step 6: Final answer
    x = 125,305.02

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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.