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Finding the Fourth Proportional to 379,158.39, 568,300.14 and 142,350.03

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Solution

The fourth proportional to 379,158.39, 568,300.14 and 142,350.03 is: 213,360.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,158.39 : 568,300.14 = 142,350.03 : x
  2. Step 2: Convert to fraction form
    379,158.39/568,300.14 = 142,350.03/x
  3. Step 3: Cross multiply
    379,158.39x = 568,300.14 × 142,350.03
  4. Step 4: Simplify right side
    379,158.39x = 80,897,541,978.00
  5. Step 5: Solve for x
    x = 80,897,541,978.00/379,158.39
  6. Step 6: Final answer
    x = 213,360.81

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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.