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Finding the Fourth Proportional to 323,875.06, 485,805.30 and 146,334.40

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Solution

The fourth proportional to 323,875.06, 485,805.30 and 146,334.40 is: 219,498.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,875.06 : 485,805.30 = 146,334.40 : x
  2. Step 2: Convert to fraction form
    323,875.06/485,805.30 = 146,334.40/x
  3. Step 3: Cross multiply
    323,875.06x = 485,805.30 × 146,334.40
  4. Step 4: Simplify right side
    323,875.06x = 71,090,027,092.32
  5. Step 5: Solve for x
    x = 71,090,027,092.32/323,875.06
  6. Step 6: Final answer
    x = 219,498.31

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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.