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Finding the Fourth Proportional to 86,673.79, 119,609.24 and 48,433.43

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Solution

The fourth proportional to 86,673.79, 119,609.24 and 48,433.43 is: 66,837.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,673.79 : 119,609.24 = 48,433.43 : x
  2. Step 2: Convert to fraction form
    86,673.79/119,609.24 = 48,433.43/x
  3. Step 3: Cross multiply
    86,673.79x = 119,609.24 × 48,433.43
  4. Step 4: Simplify right side
    86,673.79x = 5,793,086,397.27
  5. Step 5: Solve for x
    x = 5,793,086,397.27/86,673.79
  6. Step 6: Final answer
    x = 66,837.81

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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.