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Finding the Fourth Proportional to 269,712.30, 404,665.65 and 112,053.90

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Solution

The fourth proportional to 269,712.30, 404,665.65 and 112,053.90 is: 168,121.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,712.30 : 404,665.65 = 112,053.90 : x
  2. Step 2: Convert to fraction form
    269,712.30/404,665.65 = 112,053.90/x
  3. Step 3: Cross multiply
    269,712.30x = 404,665.65 × 112,053.90
  4. Step 4: Simplify right side
    269,712.30x = 45,344,364,278.54
  5. Step 5: Solve for x
    x = 45,344,364,278.54/269,712.30
  6. Step 6: Final answer
    x = 168,121.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.