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Finding the Fourth Proportional to 131,452.80, 197,179.20 and 123,676.80

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Solution

The fourth proportional to 131,452.80, 197,179.20 and 123,676.80 is: 185,515.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,452.80 : 197,179.20 = 123,676.80 : x
  2. Step 2: Convert to fraction form
    131,452.80/197,179.20 = 123,676.80/x
  3. Step 3: Cross multiply
    131,452.80x = 197,179.20 × 123,676.80
  4. Step 4: Simplify right side
    131,452.80x = 24,386,492,482.56
  5. Step 5: Solve for x
    x = 24,386,492,482.56/131,452.80
  6. Step 6: Final answer
    x = 185,515.20

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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.