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Finding the Fourth Proportional to 262,067.91, 392,821.45 and 135,580.74

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Solution

The fourth proportional to 262,067.91, 392,821.45 and 135,580.74 is: 203,226.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,067.91 : 392,821.45 = 135,580.74 : x
  2. Step 2: Convert to fraction form
    262,067.91/392,821.45 = 135,580.74/x
  3. Step 3: Cross multiply
    262,067.91x = 392,821.45 × 135,580.74
  4. Step 4: Simplify right side
    262,067.91x = 53,259,021,066.84
  5. Step 5: Solve for x
    x = 53,259,021,066.84/262,067.91
  6. Step 6: Final answer
    x = 203,226.03

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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.