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Finding the Fourth Proportional to 201,669.84, 278,424.18 and 179,249.76

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Solution

The fourth proportional to 201,669.84, 278,424.18 and 179,249.76 is: 247,471.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,669.84 : 278,424.18 = 179,249.76 : x
  2. Step 2: Convert to fraction form
    201,669.84/278,424.18 = 179,249.76/x
  3. Step 3: Cross multiply
    201,669.84x = 278,424.18 × 179,249.76
  4. Step 4: Simplify right side
    201,669.84x = 49,907,467,443.20
  5. Step 5: Solve for x
    x = 49,907,467,443.20/201,669.84
  6. Step 6: Final answer
    x = 247,471.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.