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Finding the Fourth Proportional to 68,782.14, 103,151.61 and 26,659.26

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Solution

The fourth proportional to 68,782.14, 103,151.61 and 26,659.26 is: 39,980.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,782.14 : 103,151.61 = 26,659.26 : x
  2. Step 2: Convert to fraction form
    68,782.14/103,151.61 = 26,659.26/x
  3. Step 3: Cross multiply
    68,782.14x = 103,151.61 × 26,659.26
  4. Step 4: Simplify right side
    68,782.14x = 2,749,945,590.41
  5. Step 5: Solve for x
    x = 2,749,945,590.41/68,782.14
  6. Step 6: Final answer
    x = 39,980.52

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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.