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Finding the Fourth Proportional to 222,695.60, 333,612.68 and 138,489.41

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Solution

The fourth proportional to 222,695.60, 333,612.68 and 138,489.41 is: 207,466.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,695.60 : 333,612.68 = 138,489.41 : x
  2. Step 2: Convert to fraction form
    222,695.60/333,612.68 = 138,489.41/x
  3. Step 3: Cross multiply
    222,695.60x = 333,612.68 × 138,489.41
  4. Step 4: Simplify right side
    222,695.60x = 46,201,823,363.30
  5. Step 5: Solve for x
    x = 46,201,823,363.30/222,695.60
  6. Step 6: Final answer
    x = 207,466.27

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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.