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Finding the Fourth Proportional to 477,067.19, 715,600.17 and 122,081.31

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Solution

The fourth proportional to 477,067.19, 715,600.17 and 122,081.31 is: 183,121.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,067.19 : 715,600.17 = 122,081.31 : x
  2. Step 2: Convert to fraction form
    477,067.19/715,600.17 = 122,081.31/x
  3. Step 3: Cross multiply
    477,067.19x = 715,600.17 × 122,081.31
  4. Step 4: Simplify right side
    477,067.19x = 87,361,406,189.82
  5. Step 5: Solve for x
    x = 87,361,406,189.82/477,067.19
  6. Step 6: Final answer
    x = 183,121.81

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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.