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Finding the Fourth Proportional to 303,064.79, 418,227.44 and 165,243.69

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Solution

The fourth proportional to 303,064.79, 418,227.44 and 165,243.69 is: 228,035.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,064.79 : 418,227.44 = 165,243.69 : x
  2. Step 2: Convert to fraction form
    303,064.79/418,227.44 = 165,243.69/x
  3. Step 3: Cross multiply
    303,064.79x = 418,227.44 × 165,243.69
  4. Step 4: Simplify right side
    303,064.79x = 69,109,444,618.64
  5. Step 5: Solve for x
    x = 69,109,444,618.64/303,064.79
  6. Step 6: Final answer
    x = 228,035.22

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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.