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Finding the Fourth Proportional to 202,391.22, 279,304.24 and 111,752.92

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Solution

The fourth proportional to 202,391.22, 279,304.24 and 111,752.92 is: 154,221.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,391.22 : 279,304.24 = 111,752.92 : x
  2. Step 2: Convert to fraction form
    202,391.22/279,304.24 = 111,752.92/x
  3. Step 3: Cross multiply
    202,391.22x = 279,304.24 × 111,752.92
  4. Step 4: Simplify right side
    202,391.22x = 31,213,063,410.74
  5. Step 5: Solve for x
    x = 31,213,063,410.74/202,391.22
  6. Step 6: Final answer
    x = 154,221.43

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1.5x scale

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.