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Finding the Fourth Proportional to 269,212.40, 403,672.80 and 111,456.80

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Solution

The fourth proportional to 269,212.40, 403,672.80 and 111,456.80 is: 167,124.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,212.40 : 403,672.80 = 111,456.80 : x
  2. Step 2: Convert to fraction form
    269,212.40/403,672.80 = 111,456.80/x
  3. Step 3: Cross multiply
    269,212.40x = 403,672.80 × 111,456.80
  4. Step 4: Simplify right side
    269,212.40x = 44,992,078,535.04
  5. Step 5: Solve for x
    x = 44,992,078,535.04/269,212.40
  6. Step 6: Final answer
    x = 167,124.84

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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.