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Finding the Fourth Proportional to 129,627.80, 194,441.70 and 82,933.40

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Solution

The fourth proportional to 129,627.80, 194,441.70 and 82,933.40 is: 124,400.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,627.80 : 194,441.70 = 82,933.40 : x
  2. Step 2: Convert to fraction form
    129,627.80/194,441.70 = 82,933.40/x
  3. Step 3: Cross multiply
    129,627.80x = 194,441.70 × 82,933.40
  4. Step 4: Simplify right side
    129,627.80x = 16,125,711,282.78
  5. Step 5: Solve for x
    x = 16,125,711,282.78/129,627.80
  6. Step 6: Final answer
    x = 124,400.10

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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.