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Finding the Fourth Proportional to 252,869.22, 379,303.71 and 75,371.70

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Solution

The fourth proportional to 252,869.22, 379,303.71 and 75,371.70 is: 113,057.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,869.22 : 379,303.71 = 75,371.70 : x
  2. Step 2: Convert to fraction form
    252,869.22/379,303.71 = 75,371.70/x
  3. Step 3: Cross multiply
    252,869.22x = 379,303.71 × 75,371.70
  4. Step 4: Simplify right side
    252,869.22x = 28,588,765,439.01
  5. Step 5: Solve for x
    x = 28,588,765,439.01/252,869.22
  6. Step 6: Final answer
    x = 113,057.51

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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.