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Finding the Fourth Proportional to 239,177.80, 358,766.70 and 200,103.40

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Solution

The fourth proportional to 239,177.80, 358,766.70 and 200,103.40 is: 300,155.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,177.80 : 358,766.70 = 200,103.40 : x
  2. Step 2: Convert to fraction form
    239,177.80/358,766.70 = 200,103.40/x
  3. Step 3: Cross multiply
    239,177.80x = 358,766.70 × 200,103.40
  4. Step 4: Simplify right side
    239,177.80x = 71,790,436,476.78
  5. Step 5: Solve for x
    x = 71,790,436,476.78/239,177.80
  6. Step 6: Final answer
    x = 300,155.10

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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.