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Finding the Fourth Proportional to 68,953.30, 103,481.15 and 27,430.10

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Solution

The fourth proportional to 68,953.30, 103,481.15 and 27,430.10 is: 41,165.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,953.30 : 103,481.15 = 27,430.10 : x
  2. Step 2: Convert to fraction form
    68,953.30/103,481.15 = 27,430.10/x
  3. Step 3: Cross multiply
    68,953.30x = 103,481.15 × 27,430.10
  4. Step 4: Simplify right side
    68,953.30x = 2,838,498,292.62
  5. Step 5: Solve for x
    x = 2,838,498,292.62/68,953.30
  6. Step 6: Final answer
    x = 41,165.52

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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.