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Finding the Fourth Proportional to 243,496.44, 336,018.84 and 136,067.36

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Solution

The fourth proportional to 243,496.44, 336,018.84 and 136,067.36 is: 187,769.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,496.44 : 336,018.84 = 136,067.36 : x
  2. Step 2: Convert to fraction form
    243,496.44/336,018.84 = 136,067.36/x
  3. Step 3: Cross multiply
    243,496.44x = 336,018.84 × 136,067.36
  4. Step 4: Simplify right side
    243,496.44x = 45,721,196,469.06
  5. Step 5: Solve for x
    x = 45,721,196,469.06/243,496.44
  6. Step 6: Final answer
    x = 187,769.47

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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.