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Finding the Fourth Proportional to 69,373.87, 103,893.13 and 39,701.75

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Solution

The fourth proportional to 69,373.87, 103,893.13 and 39,701.75 is: 59,456.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,373.87 : 103,893.13 = 39,701.75 : x
  2. Step 2: Convert to fraction form
    69,373.87/103,893.13 = 39,701.75/x
  3. Step 3: Cross multiply
    69,373.87x = 103,893.13 × 39,701.75
  4. Step 4: Simplify right side
    69,373.87x = 4,124,738,356.00
  5. Step 5: Solve for x
    x = 4,124,738,356.00/69,373.87
  6. Step 6: Final answer
    x = 59,456.66

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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.