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Finding the Fourth Proportional to 182,990.48, 274,579.70 and 138,602.48

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Solution

The fourth proportional to 182,990.48, 274,579.70 and 138,602.48 is: 207,974.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    182,990.48 : 274,579.70 = 138,602.48 : x
  2. Step 2: Convert to fraction form
    182,990.48/274,579.70 = 138,602.48/x
  3. Step 3: Cross multiply
    182,990.48x = 274,579.70 × 138,602.48
  4. Step 4: Simplify right side
    182,990.48x = 38,057,427,377.66
  5. Step 5: Solve for x
    x = 38,057,427,377.66/182,990.48
  6. Step 6: Final answer
    x = 207,974.90

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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.