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Finding the Fourth Proportional to 335,162.79, 502,585.83 and 121,781.97

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Solution

The fourth proportional to 335,162.79, 502,585.83 and 121,781.97 is: 182,615.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,162.79 : 502,585.83 = 121,781.97 : x
  2. Step 2: Convert to fraction form
    335,162.79/502,585.83 = 121,781.97/x
  3. Step 3: Cross multiply
    335,162.79x = 502,585.83 × 121,781.97
  4. Step 4: Simplify right side
    335,162.79x = 61,205,892,471.49
  5. Step 5: Solve for x
    x = 61,205,892,471.49/335,162.79
  6. Step 6: Final answer
    x = 182,615.42

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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.