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Finding the Fourth Proportional to 66,859.74, 100,352.25 and 35,293.23

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Solution

The fourth proportional to 66,859.74, 100,352.25 and 35,293.23 is: 52,972.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,859.74 : 100,352.25 = 35,293.23 : x
  2. Step 2: Convert to fraction form
    66,859.74/100,352.25 = 35,293.23/x
  3. Step 3: Cross multiply
    66,859.74x = 100,352.25 × 35,293.23
  4. Step 4: Simplify right side
    66,859.74x = 3,541,755,040.27
  5. Step 5: Solve for x
    x = 3,541,755,040.27/66,859.74
  6. Step 6: Final answer
    x = 52,972.91

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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.