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Finding the Fourth Proportional to 269,685.18, 404,708.32 and 111,913.78

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Solution

The fourth proportional to 269,685.18, 404,708.32 and 111,913.78 is: 167,945.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,685.18 : 404,708.32 = 111,913.78 : x
  2. Step 2: Convert to fraction form
    269,685.18/404,708.32 = 111,913.78/x
  3. Step 3: Cross multiply
    269,685.18x = 404,708.32 × 111,913.78
  4. Step 4: Simplify right side
    269,685.18x = 45,292,437,888.65
  5. Step 5: Solve for x
    x = 45,292,437,888.65/269,685.18
  6. Step 6: Final answer
    x = 167,945.59

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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.