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Finding the Fourth Proportional to 283,758.90, 425,638.35 and 125,819.70

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Solution

The fourth proportional to 283,758.90, 425,638.35 and 125,819.70 is: 188,729.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,758.90 : 425,638.35 = 125,819.70 : x
  2. Step 2: Convert to fraction form
    283,758.90/425,638.35 = 125,819.70/x
  3. Step 3: Cross multiply
    283,758.90x = 425,638.35 × 125,819.70
  4. Step 4: Simplify right side
    283,758.90x = 53,553,689,505.50
  5. Step 5: Solve for x
    x = 53,553,689,505.50/283,758.90
  6. Step 6: Final answer
    x = 188,729.55

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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.