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Finding the Fourth Proportional to 92,605.43, 138,917.42 and 25,138.58

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Solution

The fourth proportional to 92,605.43, 138,917.42 and 25,138.58 is: 37,710.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,605.43 : 138,917.42 = 25,138.58 : x
  2. Step 2: Convert to fraction form
    92,605.43/138,917.42 = 25,138.58/x
  3. Step 3: Cross multiply
    92,605.43x = 138,917.42 × 25,138.58
  4. Step 4: Simplify right side
    92,605.43x = 3,492,185,855.78
  5. Step 5: Solve for x
    x = 3,492,185,855.78/92,605.43
  6. Step 6: Final answer
    x = 37,710.38

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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.