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Finding the Fourth Proportional to 71,759.51, 107,634.91 and 26,772.11

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Solution

The fourth proportional to 71,759.51, 107,634.91 and 26,772.11 is: 40,156.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,759.51 : 107,634.91 = 26,772.11 : x
  2. Step 2: Convert to fraction form
    71,759.51/107,634.91 = 26,772.11/x
  3. Step 3: Cross multiply
    71,759.51x = 107,634.91 × 26,772.11
  4. Step 4: Simplify right side
    71,759.51x = 2,881,613,650.36
  5. Step 5: Solve for x
    x = 2,881,613,650.36/71,759.51
  6. Step 6: Final answer
    x = 40,156.54

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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.