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Finding the Fourth Proportional to 225,757.46, 311,559.28 and 125,155.46

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Solution

The fourth proportional to 225,757.46, 311,559.28 and 125,155.46 is: 172,722.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,757.46 : 311,559.28 = 125,155.46 : x
  2. Step 2: Convert to fraction form
    225,757.46/311,559.28 = 125,155.46/x
  3. Step 3: Cross multiply
    225,757.46x = 311,559.28 × 125,155.46
  4. Step 4: Simplify right side
    225,757.46x = 38,993,345,005.67
  5. Step 5: Solve for x
    x = 38,993,345,005.67/225,757.46
  6. Step 6: Final answer
    x = 172,722.29

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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.