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Finding the Fourth Proportional to 335,768.43, 503,689.54 and 111,047

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Solution

The fourth proportional to 335,768.43, 503,689.54 and 111,047 is: 166,582.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,768.43 : 503,689.54 = 111,047 : x
  2. Step 2: Convert to fraction form
    335,768.43/503,689.54 = 111,047/x
  3. Step 3: Cross multiply
    335,768.43x = 503,689.54 × 111,047
  4. Step 4: Simplify right side
    335,768.43x = 55,933,212,348.38
  5. Step 5: Solve for x
    x = 55,933,212,348.38/335,768.43
  6. Step 6: Final answer
    x = 166,582.70

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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.