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Finding the Fourth Proportional to 225,456.52, 311,130.06 and 124,854.52

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Solution

The fourth proportional to 225,456.52, 311,130.06 and 124,854.52 is: 172,299.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,456.52 : 311,130.06 = 124,854.52 : x
  2. Step 2: Convert to fraction form
    225,456.52/311,130.06 = 124,854.52/x
  3. Step 3: Cross multiply
    225,456.52x = 311,130.06 × 124,854.52
  4. Step 4: Simplify right side
    225,456.52x = 38,845,994,298.87
  5. Step 5: Solve for x
    x = 38,845,994,298.87/225,456.52
  6. Step 6: Final answer
    x = 172,299.27

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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.