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Finding the Fourth Proportional to 303,297.52, 418,540.80 and 165,471.52

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Solution

The fourth proportional to 303,297.52, 418,540.80 and 165,471.52 is: 228,345.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,297.52 : 418,540.80 = 165,471.52 : x
  2. Step 2: Convert to fraction form
    303,297.52/418,540.80 = 165,471.52/x
  3. Step 3: Cross multiply
    303,297.52x = 418,540.80 × 165,471.52
  4. Step 4: Simplify right side
    303,297.52x = 69,256,582,358.02
  5. Step 5: Solve for x
    x = 69,256,582,358.02/303,297.52
  6. Step 6: Final answer
    x = 228,345.36

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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.