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Finding the Fourth Proportional to 200,618.52, 276,856.65 and 120,049.44

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Solution

The fourth proportional to 200,618.52, 276,856.65 and 120,049.44 is: 165,670.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,618.52 : 276,856.65 = 120,049.44 : x
  2. Step 2: Convert to fraction form
    200,618.52/276,856.65 = 120,049.44/x
  3. Step 3: Cross multiply
    200,618.52x = 276,856.65 × 120,049.44
  4. Step 4: Simplify right side
    200,618.52x = 33,236,485,792.78
  5. Step 5: Solve for x
    x = 33,236,485,792.78/200,618.52
  6. Step 6: Final answer
    x = 165,670.08

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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.