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Finding the Fourth Proportional to 200,545.28, 300,817.92 and 95,306.84

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Solution

The fourth proportional to 200,545.28, 300,817.92 and 95,306.84 is: 142,960.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,545.28 : 300,817.92 = 95,306.84 : x
  2. Step 2: Convert to fraction form
    200,545.28/300,817.92 = 95,306.84/x
  3. Step 3: Cross multiply
    200,545.28x = 300,817.92 × 95,306.84
  4. Step 4: Simplify right side
    200,545.28x = 28,670,005,370.57
  5. Step 5: Solve for x
    x = 28,670,005,370.57/200,545.28
  6. Step 6: Final answer
    x = 142,960.26

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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.