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Finding the Fourth Proportional to 323,906.60, 485,714.10 and 124,160.60

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Solution

The fourth proportional to 323,906.60, 485,714.10 and 124,160.60 is: 186,185.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,906.60 : 485,714.10 = 124,160.60 : x
  2. Step 2: Convert to fraction form
    323,906.60/485,714.10 = 124,160.60/x
  3. Step 3: Cross multiply
    323,906.60x = 485,714.10 × 124,160.60
  4. Step 4: Simplify right side
    323,906.60x = 60,306,554,084.46
  5. Step 5: Solve for x
    x = 60,306,554,084.46/323,906.60
  6. Step 6: Final answer
    x = 186,185.01

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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.