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Finding the Fourth Proportional to 557,680.90, 836,524.14 and 136,956.82

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Solution

The fourth proportional to 557,680.90, 836,524.14 and 136,956.82 is: 205,435.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,680.90 : 836,524.14 = 136,956.82 : x
  2. Step 2: Convert to fraction form
    557,680.90/836,524.14 = 136,956.82/x
  3. Step 3: Cross multiply
    557,680.90x = 836,524.14 × 136,956.82
  4. Step 4: Simplify right side
    557,680.90x = 114,567,686,067.64
  5. Step 5: Solve for x
    x = 114,567,686,067.64/557,680.90
  6. Step 6: Final answer
    x = 205,435.92

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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.