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Finding the Fourth Proportional to 225,766.32, 311,571.56 and 125,164.32

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Solution

The fourth proportional to 225,766.32, 311,571.56 and 125,164.32 is: 172,734.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,766.32 : 311,571.56 = 125,164.32 : x
  2. Step 2: Convert to fraction form
    225,766.32/311,571.56 = 125,164.32/x
  3. Step 3: Cross multiply
    225,766.32x = 311,571.56 × 125,164.32
  4. Step 4: Simplify right side
    225,766.32x = 38,997,642,438.74
  5. Step 5: Solve for x
    x = 38,997,642,438.74/225,766.32
  6. Step 6: Final answer
    x = 172,734.54

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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.