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Finding the Fourth Proportional to 324,401.52, 486,706.54 and 155,934.06

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Solution

The fourth proportional to 324,401.52, 486,706.54 and 155,934.06 is: 233,951.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,401.52 : 486,706.54 = 155,934.06 : x
  2. Step 2: Convert to fraction form
    324,401.52/486,706.54 = 155,934.06/x
  3. Step 3: Cross multiply
    324,401.52x = 486,706.54 × 155,934.06
  4. Step 4: Simplify right side
    324,401.52x = 75,894,126,810.75
  5. Step 5: Solve for x
    x = 75,894,126,810.75/324,401.52
  6. Step 6: Final answer
    x = 233,951.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.