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Finding the Fourth Proportional to 220,324.80, 304,047.42 and 124,849.74

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Solution

The fourth proportional to 220,324.80, 304,047.42 and 124,849.74 is: 172,292.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,324.80 : 304,047.42 = 124,849.74 : x
  2. Step 2: Convert to fraction form
    220,324.80/304,047.42 = 124,849.74/x
  3. Step 3: Cross multiply
    220,324.80x = 304,047.42 × 124,849.74
  4. Step 4: Simplify right side
    220,324.80x = 37,960,241,334.67
  5. Step 5: Solve for x
    x = 37,960,241,334.67/220,324.80
  6. Step 6: Final answer
    x = 172,292.19

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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.