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Finding the Fourth Proportional to 70,861.26, 97,788.42 and 39,032.31

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Solution

The fourth proportional to 70,861.26, 97,788.42 and 39,032.31 is: 53,864.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,861.26 : 97,788.42 = 39,032.31 : x
  2. Step 2: Convert to fraction form
    70,861.26/97,788.42 = 39,032.31/x
  3. Step 3: Cross multiply
    70,861.26x = 97,788.42 × 39,032.31
  4. Step 4: Simplify right side
    70,861.26x = 3,816,907,923.85
  5. Step 5: Solve for x
    x = 3,816,907,923.85/70,861.26
  6. Step 6: Final answer
    x = 53,864.52

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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.