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Finding the Fourth Proportional to 100,668.62, 151,010.66 and 33,174.41

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Solution

The fourth proportional to 100,668.62, 151,010.66 and 33,174.41 is: 49,764.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,668.62 : 151,010.66 = 33,174.41 : x
  2. Step 2: Convert to fraction form
    100,668.62/151,010.66 = 33,174.41/x
  3. Step 3: Cross multiply
    100,668.62x = 151,010.66 × 33,174.41
  4. Step 4: Simplify right side
    100,668.62x = 5,009,688,877.09
  5. Step 5: Solve for x
    x = 5,009,688,877.09/100,668.62
  6. Step 6: Final answer
    x = 49,764.15

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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.