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Finding the Fourth Proportional to 252,484.73, 348,113.78 and 161,691.43

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Solution

The fourth proportional to 252,484.73, 348,113.78 and 161,691.43 is: 222,932.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,484.73 : 348,113.78 = 161,691.43 : x
  2. Step 2: Convert to fraction form
    252,484.73/348,113.78 = 161,691.43/x
  3. Step 3: Cross multiply
    252,484.73x = 348,113.78 × 161,691.43
  4. Step 4: Simplify right side
    252,484.73x = 56,287,012,341.88
  5. Step 5: Solve for x
    x = 56,287,012,341.88/252,484.73
  6. Step 6: Final answer
    x = 222,932.34

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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.