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Finding the Fourth Proportional to 345,124.52, 476,198.36 and 201,856.60

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Solution

The fourth proportional to 345,124.52, 476,198.36 and 201,856.60 is: 278,519.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,124.52 : 476,198.36 = 201,856.60 : x
  2. Step 2: Convert to fraction form
    345,124.52/476,198.36 = 201,856.60/x
  3. Step 3: Cross multiply
    345,124.52x = 476,198.36 × 201,856.60
  4. Step 4: Simplify right side
    345,124.52x = 96,123,781,875.18
  5. Step 5: Solve for x
    x = 96,123,781,875.18/345,124.52
  6. Step 6: Final answer
    x = 278,519.13

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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.