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Finding the Fourth Proportional to 69,109.84, 95,371.72 and 39,301.84

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Solution

The fourth proportional to 69,109.84, 95,371.72 and 39,301.84 is: 54,236.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,109.84 : 95,371.72 = 39,301.84 : x
  2. Step 2: Convert to fraction form
    69,109.84/95,371.72 = 39,301.84/x
  3. Step 3: Cross multiply
    69,109.84x = 95,371.72 × 39,301.84
  4. Step 4: Simplify right side
    69,109.84x = 3,748,284,079.96
  5. Step 5: Solve for x
    x = 3,748,284,079.96/69,109.84
  6. Step 6: Final answer
    x = 54,236.62

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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.