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Finding the Fourth Proportional to 225,293.98, 310,908.90 and 124,691.98

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Solution

The fourth proportional to 225,293.98, 310,908.90 and 124,691.98 is: 172,076.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,293.98 : 310,908.90 = 124,691.98 : x
  2. Step 2: Convert to fraction form
    225,293.98/310,908.90 = 124,691.98/x
  3. Step 3: Cross multiply
    225,293.98x = 310,908.90 × 124,691.98
  4. Step 4: Simplify right side
    225,293.98x = 38,767,846,340.62
  5. Step 5: Solve for x
    x = 38,767,846,340.62/225,293.98
  6. Step 6: Final answer
    x = 172,076.71

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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.