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Finding the Fourth Proportional to 70,864.50, 97,791.96 and 39,033.42

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Solution

The fourth proportional to 70,864.50, 97,791.96 and 39,033.42 is: 53,865.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,864.50 : 97,791.96 = 39,033.42 : x
  2. Step 2: Convert to fraction form
    70,864.50/97,791.96 = 39,033.42/x
  3. Step 3: Cross multiply
    70,864.50x = 97,791.96 × 39,033.42
  4. Step 4: Simplify right side
    70,864.50x = 3,817,154,647.30
  5. Step 5: Solve for x
    x = 3,817,154,647.30/70,864.50
  6. Step 6: Final answer
    x = 53,865.54

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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.