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Finding the Fourth Proportional to 241,187.30, 361,997.78 and 128,963.44

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Solution

The fourth proportional to 241,187.30, 361,997.78 and 128,963.44 is: 193,561.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    241,187.30 : 361,997.78 = 128,963.44 : x
  2. Step 2: Convert to fraction form
    241,187.30/361,997.78 = 128,963.44/x
  3. Step 3: Cross multiply
    241,187.30x = 361,997.78 × 128,963.44
  4. Step 4: Simplify right side
    241,187.30x = 46,684,479,876.97
  5. Step 5: Solve for x
    x = 46,684,479,876.97/241,187.30
  6. Step 6: Final answer
    x = 193,561.11

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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.