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Finding the Fourth Proportional to 115,395.84, 173,093.76 and 92,169.90

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Solution

The fourth proportional to 115,395.84, 173,093.76 and 92,169.90 is: 138,254.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,395.84 : 173,093.76 = 92,169.90 : x
  2. Step 2: Convert to fraction form
    115,395.84/173,093.76 = 92,169.90/x
  3. Step 3: Cross multiply
    115,395.84x = 173,093.76 × 92,169.90
  4. Step 4: Simplify right side
    115,395.84x = 15,954,034,549.82
  5. Step 5: Solve for x
    x = 15,954,034,549.82/115,395.84
  6. Step 6: Final answer
    x = 138,254.85

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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.