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Finding the Fourth Proportional to 323,508.69, 446,443.75 and 187,623.20

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Solution

The fourth proportional to 323,508.69, 446,443.75 and 187,623.20 is: 258,921.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,508.69 : 446,443.75 = 187,623.20 : x
  2. Step 2: Convert to fraction form
    323,508.69/446,443.75 = 187,623.20/x
  3. Step 3: Cross multiply
    323,508.69x = 446,443.75 × 187,623.20
  4. Step 4: Simplify right side
    323,508.69x = 83,763,206,345.64
  5. Step 5: Solve for x
    x = 83,763,206,345.64/323,508.69
  6. Step 6: Final answer
    x = 258,921.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.