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Finding the Fourth Proportional to 100,575.09, 150,879.04 and 34,019.15

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Solution

The fourth proportional to 100,575.09, 150,879.04 and 34,019.15 is: 51,034.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,575.09 : 150,879.04 = 34,019.15 : x
  2. Step 2: Convert to fraction form
    100,575.09/150,879.04 = 34,019.15/x
  3. Step 3: Cross multiply
    100,575.09x = 150,879.04 × 34,019.15
  4. Step 4: Simplify right side
    100,575.09x = 5,132,775,854.17
  5. Step 5: Solve for x
    x = 5,132,775,854.17/100,575.09
  6. Step 6: Final answer
    x = 51,034.27

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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.