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Finding the Fourth Proportional to 69,175.71, 103,597.23 and 39,503.61

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Solution

The fourth proportional to 69,175.71, 103,597.23 and 39,503.61 is: 59,160.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,175.71 : 103,597.23 = 39,503.61 : x
  2. Step 2: Convert to fraction form
    69,175.71/103,597.23 = 39,503.61/x
  3. Step 3: Cross multiply
    69,175.71x = 103,597.23 × 39,503.61
  4. Step 4: Simplify right side
    69,175.71x = 4,092,464,571.00
  5. Step 5: Solve for x
    x = 4,092,464,571.00/69,175.71
  6. Step 6: Final answer
    x = 59,160.43

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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.