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Finding the Fourth Proportional to 225,439.56, 311,106.60 and 124,837.56

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Solution

The fourth proportional to 225,439.56, 311,106.60 and 124,837.56 is: 172,275.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,439.56 : 311,106.60 = 124,837.56 : x
  2. Step 2: Convert to fraction form
    225,439.56/311,106.60 = 124,837.56/x
  3. Step 3: Cross multiply
    225,439.56x = 311,106.60 × 124,837.56
  4. Step 4: Simplify right side
    225,439.56x = 38,837,788,843.90
  5. Step 5: Solve for x
    x = 38,837,788,843.90/225,439.56
  6. Step 6: Final answer
    x = 172,275.84

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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.