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Finding the Fourth Proportional to 366,939.15, 550,408.73 and 156,987.15

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Solution

The fourth proportional to 366,939.15, 550,408.73 and 156,987.15 is: 235,480.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,939.15 : 550,408.73 = 156,987.15 : x
  2. Step 2: Convert to fraction form
    366,939.15/550,408.73 = 156,987.15/x
  3. Step 3: Cross multiply
    366,939.15x = 550,408.73 × 156,987.15
  4. Step 4: Simplify right side
    366,939.15x = 86,407,097,857.82
  5. Step 5: Solve for x
    x = 86,407,097,857.82/366,939.15
  6. Step 6: Final answer
    x = 235,480.73

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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.