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Finding the Fourth Proportional to 252,842.40, 379,043.28 and 95,028.48

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Solution

The fourth proportional to 252,842.40, 379,043.28 and 95,028.48 is: 142,459.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,842.40 : 379,043.28 = 95,028.48 : x
  2. Step 2: Convert to fraction form
    252,842.40/379,043.28 = 95,028.48/x
  3. Step 3: Cross multiply
    252,842.40x = 379,043.28 × 95,028.48
  4. Step 4: Simplify right side
    252,842.40x = 36,019,906,752.61
  5. Step 5: Solve for x
    x = 36,019,906,752.61/252,842.40
  6. Step 6: Final answer
    x = 142,459.91

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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.