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Finding the Fourth Proportional to 269,472.10, 404,139.18 and 79,888.14

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Solution

The fourth proportional to 269,472.10, 404,139.18 and 79,888.14 is: 119,811.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,472.10 : 404,139.18 = 79,888.14 : x
  2. Step 2: Convert to fraction form
    269,472.10/404,139.18 = 79,888.14/x
  3. Step 3: Cross multiply
    269,472.10x = 404,139.18 × 79,888.14
  4. Step 4: Simplify right side
    269,472.10x = 32,285,927,391.33
  5. Step 5: Solve for x
    x = 32,285,927,391.33/269,472.10
  6. Step 6: Final answer
    x = 119,811.76

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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.