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Finding the Fourth Proportional to 69,260.64, 103,760.40 and 34,159.20

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Solution

The fourth proportional to 69,260.64, 103,760.40 and 34,159.20 is: 51,174.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,260.64 : 103,760.40 = 34,159.20 : x
  2. Step 2: Convert to fraction form
    69,260.64/103,760.40 = 34,159.20/x
  3. Step 3: Cross multiply
    69,260.64x = 103,760.40 × 34,159.20
  4. Step 4: Simplify right side
    69,260.64x = 3,544,372,255.68
  5. Step 5: Solve for x
    x = 3,544,372,255.68/69,260.64
  6. Step 6: Final answer
    x = 51,174.41

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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.