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Finding the Fourth Proportional to 151,728.90, 227,593.35 and 92,679.90

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Solution

The fourth proportional to 151,728.90, 227,593.35 and 92,679.90 is: 139,019.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,728.90 : 227,593.35 = 92,679.90 : x
  2. Step 2: Convert to fraction form
    151,728.90/227,593.35 = 92,679.90/x
  3. Step 3: Cross multiply
    151,728.90x = 227,593.35 × 92,679.90
  4. Step 4: Simplify right side
    151,728.90x = 21,093,328,918.67
  5. Step 5: Solve for x
    x = 21,093,328,918.67/151,728.90
  6. Step 6: Final answer
    x = 139,019.85

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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.