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Finding the Fourth Proportional to 200,363.40, 300,545.10 and 125,713.80

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Solution

The fourth proportional to 200,363.40, 300,545.10 and 125,713.80 is: 188,570.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,363.40 : 300,545.10 = 125,713.80 : x
  2. Step 2: Convert to fraction form
    200,363.40/300,545.10 = 125,713.80/x
  3. Step 3: Cross multiply
    200,363.40x = 300,545.10 × 125,713.80
  4. Step 4: Simplify right side
    200,363.40x = 37,782,666,592.38
  5. Step 5: Solve for x
    x = 37,782,666,592.38/200,363.40
  6. Step 6: Final answer
    x = 188,570.70

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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.