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Finding the Fourth Proportional to 170,951.44, 256,223.34 and 79,644.36

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Solution

The fourth proportional to 170,951.44, 256,223.34 and 79,644.36 is: 119,371.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,951.44 : 256,223.34 = 79,644.36 : x
  2. Step 2: Convert to fraction form
    170,951.44/256,223.34 = 79,644.36/x
  3. Step 3: Cross multiply
    170,951.44x = 256,223.34 × 79,644.36
  4. Step 4: Simplify right side
    170,951.44x = 20,406,743,931.36
  5. Step 5: Solve for x
    x = 20,406,743,931.36/170,951.44
  6. Step 6: Final answer
    x = 119,371.58

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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.