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Finding the Fourth Proportional to 92,109.78, 138,167.63 and 25,550.58

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Solution

The fourth proportional to 92,109.78, 138,167.63 and 25,550.58 is: 38,326.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,109.78 : 138,167.63 = 25,550.58 : x
  2. Step 2: Convert to fraction form
    92,109.78/138,167.63 = 25,550.58/x
  3. Step 3: Cross multiply
    92,109.78x = 138,167.63 × 25,550.58
  4. Step 4: Simplify right side
    92,109.78x = 3,530,263,083.73
  5. Step 5: Solve for x
    x = 3,530,263,083.73/92,109.78
  6. Step 6: Final answer
    x = 38,326.69

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1.5x scale

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.