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Finding the Fourth Proportional to 69,265.26, 103,905.18 and 34,171.20

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Solution

The fourth proportional to 69,265.26, 103,905.18 and 34,171.20 is: 51,260.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,265.26 : 103,905.18 = 34,171.20 : x
  2. Step 2: Convert to fraction form
    69,265.26/103,905.18 = 34,171.20/x
  3. Step 3: Cross multiply
    69,265.26x = 103,905.18 × 34,171.20
  4. Step 4: Simplify right side
    69,265.26x = 3,550,564,686.82
  5. Step 5: Solve for x
    x = 3,550,564,686.82/69,265.26
  6. Step 6: Final answer
    x = 51,260.40

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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.