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Finding the Fourth Proportional to 225,737.01, 311,516.99 and 123,760.29

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Solution

The fourth proportional to 225,737.01, 311,516.99 and 123,760.29 is: 170,789.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,737.01 : 311,516.99 = 123,760.29 : x
  2. Step 2: Convert to fraction form
    225,737.01/311,516.99 = 123,760.29/x
  3. Step 3: Cross multiply
    225,737.01x = 311,516.99 × 123,760.29
  4. Step 4: Simplify right side
    225,737.01x = 38,553,433,022.33
  5. Step 5: Solve for x
    x = 38,553,433,022.33/225,737.01
  6. Step 6: Final answer
    x = 170,789.15

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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.