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Finding the Fourth Proportional to 202,578.52, 279,544.02 and 111,933.52

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Solution

The fourth proportional to 202,578.52, 279,544.02 and 111,933.52 is: 154,460.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,578.52 : 279,544.02 = 111,933.52 : x
  2. Step 2: Convert to fraction form
    202,578.52/279,544.02 = 111,933.52/x
  3. Step 3: Cross multiply
    202,578.52x = 279,544.02 × 111,933.52
  4. Step 4: Simplify right side
    202,578.52x = 31,290,346,153.55
  5. Step 5: Solve for x
    x = 31,290,346,153.55/202,578.52
  6. Step 6: Final answer
    x = 154,460.34

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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.