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Finding the Fourth Proportional to 112,067.44, 154,653.78 and 61,766.44

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Solution

The fourth proportional to 112,067.44, 154,653.78 and 61,766.44 is: 85,238.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,067.44 : 154,653.78 = 61,766.44 : x
  2. Step 2: Convert to fraction form
    112,067.44/154,653.78 = 61,766.44/x
  3. Step 3: Cross multiply
    112,067.44x = 154,653.78 × 61,766.44
  4. Step 4: Simplify right side
    112,067.44x = 9,552,413,423.14
  5. Step 5: Solve for x
    x = 9,552,413,423.14/112,067.44
  6. Step 6: Final answer
    x = 85,238.08

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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.