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Finding the Fourth Proportional to 472,707.38, 708,728.82 and 173,149.03

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Solution

The fourth proportional to 472,707.38, 708,728.82 and 173,149.03 is: 259,601.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,707.38 : 708,728.82 = 173,149.03 : x
  2. Step 2: Convert to fraction form
    472,707.38/708,728.82 = 173,149.03/x
  3. Step 3: Cross multiply
    472,707.38x = 708,728.82 × 173,149.03
  4. Step 4: Simplify right side
    472,707.38x = 122,715,707,716.05
  5. Step 5: Solve for x
    x = 122,715,707,716.05/472,707.38
  6. Step 6: Final answer
    x = 259,601.84

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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.