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Finding the Fourth Proportional to 315,153.52, 472,734.39 and 104,791.48

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Solution

The fourth proportional to 315,153.52, 472,734.39 and 104,791.48 is: 157,188.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,153.52 : 472,734.39 = 104,791.48 : x
  2. Step 2: Convert to fraction form
    315,153.52/472,734.39 = 104,791.48/x
  3. Step 3: Cross multiply
    315,153.52x = 472,734.39 × 104,791.48
  4. Step 4: Simplify right side
    315,153.52x = 49,538,534,011.33
  5. Step 5: Solve for x
    x = 49,538,534,011.33/315,153.52
  6. Step 6: Final answer
    x = 157,188.58

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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.