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Finding the Fourth Proportional to 367,862.70, 551,568.23 and 142,960.53

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Solution

The fourth proportional to 367,862.70, 551,568.23 and 142,960.53 is: 214,353.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,862.70 : 551,568.23 = 142,960.53 : x
  2. Step 2: Convert to fraction form
    367,862.70/551,568.23 = 142,960.53/x
  3. Step 3: Cross multiply
    367,862.70x = 551,568.23 × 142,960.53
  4. Step 4: Simplify right side
    367,862.70x = 78,852,486,491.96
  5. Step 5: Solve for x
    x = 78,852,486,491.96/367,862.70
  6. Step 6: Final answer
    x = 214,353.04

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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.