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Finding the Fourth Proportional to 329,879.60, 494,854.68 and 105,187.04

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Solution

The fourth proportional to 329,879.60, 494,854.68 and 105,187.04 is: 157,791.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,879.60 : 494,854.68 = 105,187.04 : x
  2. Step 2: Convert to fraction form
    329,879.60/494,854.68 = 105,187.04/x
  3. Step 3: Cross multiply
    329,879.60x = 494,854.68 × 105,187.04
  4. Step 4: Simplify right side
    329,879.60x = 52,052,299,019.35
  5. Step 5: Solve for x
    x = 52,052,299,019.35/329,879.60
  6. Step 6: Final answer
    x = 157,791.81

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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.