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Finding the Fourth Proportional to 315,153.23, 472,733.95 and 104,791.16

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Solution

The fourth proportional to 315,153.23, 472,733.95 and 104,791.16 is: 157,188.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,153.23 : 472,733.95 = 104,791.16 : x
  2. Step 2: Convert to fraction form
    315,153.23/472,733.95 = 104,791.16/x
  3. Step 3: Cross multiply
    315,153.23x = 472,733.95 × 104,791.16
  4. Step 4: Simplify right side
    315,153.23x = 49,538,338,991.88
  5. Step 5: Solve for x
    x = 49,538,338,991.88/315,153.23
  6. Step 6: Final answer
    x = 157,188.10

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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.