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Finding the Fourth Proportional to 69,668.96, 96,130.68 and 41,381.60

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Solution

The fourth proportional to 69,668.96, 96,130.68 and 41,381.60 is: 57,099.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,668.96 : 96,130.68 = 41,381.60 : x
  2. Step 2: Convert to fraction form
    69,668.96/96,130.68 = 41,381.60/x
  3. Step 3: Cross multiply
    69,668.96x = 96,130.68 × 41,381.60
  4. Step 4: Simplify right side
    69,668.96x = 3,978,041,347.49
  5. Step 5: Solve for x
    x = 3,978,041,347.49/69,668.96
  6. Step 6: Final answer
    x = 57,099.19

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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.