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Finding the Fourth Proportional to 269,686.20, 404,205.30 and 111,833.40

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Solution

The fourth proportional to 269,686.20, 404,205.30 and 111,833.40 is: 167,615.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,686.20 : 404,205.30 = 111,833.40 : x
  2. Step 2: Convert to fraction form
    269,686.20/404,205.30 = 111,833.40/x
  3. Step 3: Cross multiply
    269,686.20x = 404,205.30 × 111,833.40
  4. Step 4: Simplify right side
    269,686.20x = 45,203,652,997.02
  5. Step 5: Solve for x
    x = 45,203,652,997.02/269,686.20
  6. Step 6: Final answer
    x = 167,615.74

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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.