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Finding the Fourth Proportional to 115,551.20, 173,035.20 and 92,223.20

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Solution

The fourth proportional to 115,551.20, 173,035.20 and 92,223.20 is: 138,102.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,551.20 : 173,035.20 = 92,223.20 : x
  2. Step 2: Convert to fraction form
    115,551.20/173,035.20 = 92,223.20/x
  3. Step 3: Cross multiply
    115,551.20x = 173,035.20 × 92,223.20
  4. Step 4: Simplify right side
    115,551.20x = 15,957,859,856.64
  5. Step 5: Solve for x
    x = 15,957,859,856.64/115,551.20
  6. Step 6: Final answer
    x = 138,102.07

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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.