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Finding the Fourth Proportional to 338,967.68, 508,481.07 and 111,195

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Solution

The fourth proportional to 338,967.68, 508,481.07 and 111,195 is: 166,802.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,967.68 : 508,481.07 = 111,195 : x
  2. Step 2: Convert to fraction form
    338,967.68/508,481.07 = 111,195/x
  3. Step 3: Cross multiply
    338,967.68x = 508,481.07 × 111,195
  4. Step 4: Simplify right side
    338,967.68x = 56,540,552,161.67
  5. Step 5: Solve for x
    x = 56,540,552,161.67/338,967.68
  6. Step 6: Final answer
    x = 166,802.19

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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.