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Finding the Fourth Proportional to 323,407.36, 485,094.84 and 123,823.36

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Solution

The fourth proportional to 323,407.36, 485,094.84 and 123,823.36 is: 185,728.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,407.36 : 485,094.84 = 123,823.36 : x
  2. Step 2: Convert to fraction form
    323,407.36/485,094.84 = 123,823.36/x
  3. Step 3: Cross multiply
    323,407.36x = 485,094.84 × 123,823.36
  4. Step 4: Simplify right side
    323,407.36x = 60,066,073,007.46
  5. Step 5: Solve for x
    x = 60,066,073,007.46/323,407.36
  6. Step 6: Final answer
    x = 185,728.84

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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.