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Finding the Fourth Proportional to 276,518.63, 381,713.67 and 185,927.11

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Solution

The fourth proportional to 276,518.63, 381,713.67 and 185,927.11 is: 256,658.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,518.63 : 381,713.67 = 185,927.11 : x
  2. Step 2: Convert to fraction form
    276,518.63/381,713.67 = 185,927.11/x
  3. Step 3: Cross multiply
    276,518.63x = 381,713.67 × 185,927.11
  4. Step 4: Simplify right side
    276,518.63x = 70,970,917,859.08
  5. Step 5: Solve for x
    x = 70,970,917,859.08/276,518.63
  6. Step 6: Final answer
    x = 256,658.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.