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Finding the Fourth Proportional to 315,148.97, 472,727.57 and 104,786.91

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Solution

The fourth proportional to 315,148.97, 472,727.57 and 104,786.91 is: 157,181.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,148.97 : 472,727.57 = 104,786.91 : x
  2. Step 2: Convert to fraction form
    315,148.97/472,727.57 = 104,786.91/x
  3. Step 3: Cross multiply
    315,148.97x = 472,727.57 × 104,786.91
  4. Step 4: Simplify right side
    315,148.97x = 49,535,661,594.08
  5. Step 5: Solve for x
    x = 49,535,661,594.08/315,148.97
  6. Step 6: Final answer
    x = 157,181.73

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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.