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Finding the Fourth Proportional to 225,613.68, 311,359.32 and 125,009.52

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Solution

The fourth proportional to 225,613.68, 311,359.32 and 125,009.52 is: 172,520.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,613.68 : 311,359.32 = 125,009.52 : x
  2. Step 2: Convert to fraction form
    225,613.68/311,359.32 = 125,009.52/x
  3. Step 3: Cross multiply
    225,613.68x = 311,359.32 × 125,009.52
  4. Step 4: Simplify right side
    225,613.68x = 38,922,879,140.73
  5. Step 5: Solve for x
    x = 38,922,879,140.73/225,613.68
  6. Step 6: Final answer
    x = 172,520.03

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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.