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Finding the Fourth Proportional to 201,653.44, 278,279.04 and 112,229.44

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Solution

The fourth proportional to 201,653.44, 278,279.04 and 112,229.44 is: 154,875.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,653.44 : 278,279.04 = 112,229.44 : x
  2. Step 2: Convert to fraction form
    201,653.44/278,279.04 = 112,229.44/x
  3. Step 3: Cross multiply
    201,653.44x = 278,279.04 × 112,229.44
  4. Step 4: Simplify right side
    201,653.44x = 31,231,100,822.94
  5. Step 5: Solve for x
    x = 31,231,100,822.94/201,653.44
  6. Step 6: Final answer
    x = 154,875.12

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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.