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Finding the Fourth Proportional to 71,781.63, 107,673.35 and 25,034.50

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Solution

The fourth proportional to 71,781.63, 107,673.35 and 25,034.50 is: 37,552.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,781.63 : 107,673.35 = 25,034.50 : x
  2. Step 2: Convert to fraction form
    71,781.63/107,673.35 = 25,034.50/x
  3. Step 3: Cross multiply
    71,781.63x = 107,673.35 × 25,034.50
  4. Step 4: Simplify right side
    71,781.63x = 2,695,548,480.58
  5. Step 5: Solve for x
    x = 2,695,548,480.58/71,781.63
  6. Step 6: Final answer
    x = 37,552.07

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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.