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Finding the Fourth Proportional to 100,672.88, 151,010.22 and 30,552.19

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Solution

The fourth proportional to 100,672.88, 151,010.22 and 30,552.19 is: 45,828.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,672.88 : 151,010.22 = 30,552.19 : x
  2. Step 2: Convert to fraction form
    100,672.88/151,010.22 = 30,552.19/x
  3. Step 3: Cross multiply
    100,672.88x = 151,010.22 × 30,552.19
  4. Step 4: Simplify right side
    100,672.88x = 4,613,692,670.43
  5. Step 5: Solve for x
    x = 4,613,692,670.43/100,672.88
  6. Step 6: Final answer
    x = 45,828.56

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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.