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Finding the Fourth Proportional to 351,551.76, 527,219.91 and 126,884.76

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Solution

The fourth proportional to 351,551.76, 527,219.91 and 126,884.76 is: 190,288.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,551.76 : 527,219.91 = 126,884.76 : x
  2. Step 2: Convert to fraction form
    351,551.76/527,219.91 = 126,884.76/x
  3. Step 3: Cross multiply
    351,551.76x = 527,219.91 × 126,884.76
  4. Step 4: Simplify right side
    351,551.76x = 66,896,171,747.57
  5. Step 5: Solve for x
    x = 66,896,171,747.57/351,551.76
  6. Step 6: Final answer
    x = 190,288.26

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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.