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Finding the Fourth Proportional to 155,138.52, 232,728.66 and 49,932.12

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Solution

The fourth proportional to 155,138.52, 232,728.66 and 49,932.12 is: 74,904.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,138.52 : 232,728.66 = 49,932.12 : x
  2. Step 2: Convert to fraction form
    155,138.52/232,728.66 = 49,932.12/x
  3. Step 3: Cross multiply
    155,138.52x = 232,728.66 × 49,932.12
  4. Step 4: Simplify right side
    155,138.52x = 11,620,635,378.56
  5. Step 5: Solve for x
    x = 11,620,635,378.56/155,138.52
  6. Step 6: Final answer
    x = 74,904.90

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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.