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Finding the Fourth Proportional to 69,060.81, 103,668.03 and 35,771.97

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Solution

The fourth proportional to 69,060.81, 103,668.03 and 35,771.97 is: 53,697.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,060.81 : 103,668.03 = 35,771.97 : x
  2. Step 2: Convert to fraction form
    69,060.81/103,668.03 = 35,771.97/x
  3. Step 3: Cross multiply
    69,060.81x = 103,668.03 × 35,771.97
  4. Step 4: Simplify right side
    69,060.81x = 3,708,409,659.12
  5. Step 5: Solve for x
    x = 3,708,409,659.12/69,060.81
  6. Step 6: Final answer
    x = 53,697.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.