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Finding the Fourth Proportional to 200,451.29, 276,517.90 and 123,945.92

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Solution

The fourth proportional to 200,451.29, 276,517.90 and 123,945.92 is: 170,980.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,451.29 : 276,517.90 = 123,945.92 : x
  2. Step 2: Convert to fraction form
    200,451.29/276,517.90 = 123,945.92/x
  3. Step 3: Cross multiply
    200,451.29x = 276,517.90 × 123,945.92
  4. Step 4: Simplify right side
    200,451.29x = 34,273,265,893.40
  5. Step 5: Solve for x
    x = 34,273,265,893.40/200,451.29
  6. Step 6: Final answer
    x = 170,980.52

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1.5x scale

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.