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Finding the Fourth Proportional to 203,616.88, 305,434.92 and 168,012.16

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Solution

The fourth proportional to 203,616.88, 305,434.92 and 168,012.16 is: 252,026.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,616.88 : 305,434.92 = 168,012.16 : x
  2. Step 2: Convert to fraction form
    203,616.88/305,434.92 = 168,012.16/x
  3. Step 3: Cross multiply
    203,616.88x = 305,434.92 × 168,012.16
  4. Step 4: Simplify right side
    203,616.88x = 51,316,780,648.63
  5. Step 5: Solve for x
    x = 51,316,780,648.63/203,616.88
  6. Step 6: Final answer
    x = 252,026.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.