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Finding the Fourth Proportional to 323,147.88, 484,747.74 and 112,781.16

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Solution

The fourth proportional to 323,147.88, 484,747.74 and 112,781.16 is: 169,180.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,147.88 : 484,747.74 = 112,781.16 : x
  2. Step 2: Convert to fraction form
    323,147.88/484,747.74 = 112,781.16/x
  3. Step 3: Cross multiply
    323,147.88x = 484,747.74 × 112,781.16
  4. Step 4: Simplify right side
    323,147.88x = 54,670,412,424.58
  5. Step 5: Solve for x
    x = 54,670,412,424.58/323,147.88
  6. Step 6: Final answer
    x = 169,180.79

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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.