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Finding the Fourth Proportional to 225,452.32, 311,120.32 and 124,848.16

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Solution

The fourth proportional to 225,452.32, 311,120.32 and 124,848.16 is: 172,288.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,452.32 : 311,120.32 = 124,848.16 : x
  2. Step 2: Convert to fraction form
    225,452.32/311,120.32 = 124,848.16/x
  3. Step 3: Cross multiply
    225,452.32x = 311,120.32 × 124,848.16
  4. Step 4: Simplify right side
    225,452.32x = 38,842,799,490.61
  5. Step 5: Solve for x
    x = 38,842,799,490.61/225,452.32
  6. Step 6: Final answer
    x = 172,288.31

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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.