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Finding the Fourth Proportional to 225,653.34, 311,396.31 and 125,049.18

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Solution

The fourth proportional to 225,653.34, 311,396.31 and 125,049.18 is: 172,564.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,653.34 : 311,396.31 = 125,049.18 : x
  2. Step 2: Convert to fraction form
    225,653.34/311,396.31 = 125,049.18/x
  3. Step 3: Cross multiply
    225,653.34x = 311,396.31 × 125,049.18
  4. Step 4: Simplify right side
    225,653.34x = 38,939,853,220.53
  5. Step 5: Solve for x
    x = 38,939,853,220.53/225,653.34
  6. Step 6: Final answer
    x = 172,564.93

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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.