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Finding the Fourth Proportional to 114,456.44, 171,649.53 and 79,144.65

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Solution

The fourth proportional to 114,456.44, 171,649.53 and 79,144.65 is: 118,692.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,456.44 : 171,649.53 = 79,144.65 : x
  2. Step 2: Convert to fraction form
    114,456.44/171,649.53 = 79,144.65/x
  3. Step 3: Cross multiply
    114,456.44x = 171,649.53 × 79,144.65
  4. Step 4: Simplify right side
    114,456.44x = 13,585,141,974.51
  5. Step 5: Solve for x
    x = 13,585,141,974.51/114,456.44
  6. Step 6: Final answer
    x = 118,692.68

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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.