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Finding the Fourth Proportional to 150,513.44, 207,708.84 and 83,445.44

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Solution

The fourth proportional to 150,513.44, 207,708.84 and 83,445.44 is: 115,154.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,513.44 : 207,708.84 = 83,445.44 : x
  2. Step 2: Convert to fraction form
    150,513.44/207,708.84 = 83,445.44/x
  3. Step 3: Cross multiply
    150,513.44x = 207,708.84 × 83,445.44
  4. Step 4: Simplify right side
    150,513.44x = 17,332,355,545.69
  5. Step 5: Solve for x
    x = 17,332,355,545.69/150,513.44
  6. Step 6: Final answer
    x = 115,154.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.