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Finding the Fourth Proportional to 225,399.25, 311,060.69 and 124,797.25

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Solution

The fourth proportional to 225,399.25, 311,060.69 and 124,797.25 is: 172,225.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,399.25 : 311,060.69 = 124,797.25 : x
  2. Step 2: Convert to fraction form
    225,399.25/311,060.69 = 124,797.25/x
  3. Step 3: Cross multiply
    225,399.25x = 311,060.69 × 124,797.25
  4. Step 4: Simplify right side
    225,399.25x = 38,819,518,695.10
  5. Step 5: Solve for x
    x = 38,819,518,695.10/225,399.25
  6. Step 6: Final answer
    x = 172,225.59

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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.