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Finding the Fourth Proportional to 200,599.80, 276,856.09 and 124,143.54

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Solution

The fourth proportional to 200,599.80, 276,856.09 and 124,143.54 is: 171,335.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,599.80 : 276,856.09 = 124,143.54 : x
  2. Step 2: Convert to fraction form
    200,599.80/276,856.09 = 124,143.54/x
  3. Step 3: Cross multiply
    200,599.80x = 276,856.09 × 124,143.54
  4. Step 4: Simplify right side
    200,599.80x = 34,369,893,909.17
  5. Step 5: Solve for x
    x = 34,369,893,909.17/200,599.80
  6. Step 6: Final answer
    x = 171,335.63

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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.