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Finding the Fourth Proportional to 323,738.72, 485,612.48 and 124,069.28

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Solution

The fourth proportional to 323,738.72, 485,612.48 and 124,069.28 is: 186,105.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,738.72 : 485,612.48 = 124,069.28 : x
  2. Step 2: Convert to fraction form
    323,738.72/485,612.48 = 124,069.28/x
  3. Step 3: Cross multiply
    323,738.72x = 485,612.48 × 124,069.28
  4. Step 4: Simplify right side
    323,738.72x = 60,249,590,752.61
  5. Step 5: Solve for x
    x = 60,249,590,752.61/323,738.72
  6. Step 6: Final answer
    x = 186,105.61

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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.