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Finding the Fourth Proportional to 202,033.44, 278,808.12 and 111,392.64

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Solution

The fourth proportional to 202,033.44, 278,808.12 and 111,392.64 is: 153,722.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,033.44 : 278,808.12 = 111,392.64 : x
  2. Step 2: Convert to fraction form
    202,033.44/278,808.12 = 111,392.64/x
  3. Step 3: Cross multiply
    202,033.44x = 278,808.12 × 111,392.64
  4. Step 4: Simplify right side
    202,033.44x = 31,057,172,540.24
  5. Step 5: Solve for x
    x = 31,057,172,540.24/202,033.44
  6. Step 6: Final answer
    x = 153,722.93

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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.