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Finding the Fourth Proportional to 315,155.23, 472,736.94 and 104,793.16

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Solution

The fourth proportional to 315,155.23, 472,736.94 and 104,793.16 is: 157,191.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,155.23 : 472,736.94 = 104,793.16 : x
  2. Step 2: Convert to fraction form
    315,155.23/472,736.94 = 104,793.16/x
  3. Step 3: Cross multiply
    315,155.23x = 472,736.94 × 104,793.16
  4. Step 4: Simplify right side
    315,155.23x = 49,539,597,791.33
  5. Step 5: Solve for x
    x = 49,539,597,791.33/315,155.23
  6. Step 6: Final answer
    x = 157,191.10

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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.