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Finding the Fourth Proportional to 225,977.06, 311,854.13 and 124,006.90

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Solution

The fourth proportional to 225,977.06, 311,854.13 and 124,006.90 is: 171,132.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,977.06 : 311,854.13 = 124,006.90 : x
  2. Step 2: Convert to fraction form
    225,977.06/311,854.13 = 124,006.90/x
  3. Step 3: Cross multiply
    225,977.06x = 311,854.13 × 124,006.90
  4. Step 4: Simplify right side
    225,977.06x = 38,672,063,913.50
  5. Step 5: Solve for x
    x = 38,672,063,913.50/225,977.06
  6. Step 6: Final answer
    x = 171,132.70

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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.