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Finding the Fourth Proportional to 203,538.72, 281,022.72 and 127,174.32

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Solution

The fourth proportional to 203,538.72, 281,022.72 and 127,174.32 is: 175,587.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,538.72 : 281,022.72 = 127,174.32 : x
  2. Step 2: Convert to fraction form
    203,538.72/281,022.72 = 127,174.32/x
  3. Step 3: Cross multiply
    203,538.72x = 281,022.72 × 127,174.32
  4. Step 4: Simplify right side
    203,538.72x = 35,738,873,320.55
  5. Step 5: Solve for x
    x = 35,738,873,320.55/203,538.72
  6. Step 6: Final answer
    x = 175,587.59

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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.