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Finding the Fourth Proportional to 230,898.39, 346,399.52 and 81,149.03

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Solution

The fourth proportional to 230,898.39, 346,399.52 and 81,149.03 is: 121,741.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,898.39 : 346,399.52 = 81,149.03 : x
  2. Step 2: Convert to fraction form
    230,898.39/346,399.52 = 81,149.03/x
  3. Step 3: Cross multiply
    230,898.39x = 346,399.52 × 81,149.03
  4. Step 4: Simplify right side
    230,898.39x = 28,109,982,902.72
  5. Step 5: Solve for x
    x = 28,109,982,902.72/230,898.39
  6. Step 6: Final answer
    x = 121,741.79

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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.