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Finding the Fourth Proportional to 184,761.72, 255,040.50 and 121,103.62

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Solution

The fourth proportional to 184,761.72, 255,040.50 and 121,103.62 is: 167,168.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,761.72 : 255,040.50 = 121,103.62 : x
  2. Step 2: Convert to fraction form
    184,761.72/255,040.50 = 121,103.62/x
  3. Step 3: Cross multiply
    184,761.72x = 255,040.50 × 121,103.62
  4. Step 4: Simplify right side
    184,761.72x = 30,886,326,521.41
  5. Step 5: Solve for x
    x = 30,886,326,521.41/184,761.72
  6. Step 6: Final answer
    x = 167,168.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.