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Finding the Fourth Proportional to 283,877.40, 425,743.48 and 84,151.12

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Solution

The fourth proportional to 283,877.40, 425,743.48 and 84,151.12 is: 126,205.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,877.40 : 425,743.48 = 84,151.12 : x
  2. Step 2: Convert to fraction form
    283,877.40/425,743.48 = 84,151.12/x
  3. Step 3: Cross multiply
    283,877.40x = 425,743.48 × 84,151.12
  4. Step 4: Simplify right side
    283,877.40x = 35,826,790,674.70
  5. Step 5: Solve for x
    x = 35,826,790,674.70/283,877.40
  6. Step 6: Final answer
    x = 126,205.15

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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.