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Finding the Fourth Proportional to 92,498.67, 138,743.13 and 25,943.40

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Solution

The fourth proportional to 92,498.67, 138,743.13 and 25,943.40 is: 38,913.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,498.67 : 138,743.13 = 25,943.40 : x
  2. Step 2: Convert to fraction form
    92,498.67/138,743.13 = 25,943.40/x
  3. Step 3: Cross multiply
    92,498.67x = 138,743.13 × 25,943.40
  4. Step 4: Simplify right side
    92,498.67x = 3,599,468,518.84
  5. Step 5: Solve for x
    x = 3,599,468,518.84/92,498.67
  6. Step 6: Final answer
    x = 38,913.73

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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.