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Finding the Fourth Proportional to 69,103.62, 103,859.91 and 57,333.74

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Solution

The fourth proportional to 69,103.62, 103,859.91 and 57,333.74 is: 86,170.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,103.62 : 103,859.91 = 57,333.74 : x
  2. Step 2: Convert to fraction form
    69,103.62/103,859.91 = 57,333.74/x
  3. Step 3: Cross multiply
    69,103.62x = 103,859.91 × 57,333.74
  4. Step 4: Simplify right side
    69,103.62x = 5,954,676,557.06
  5. Step 5: Solve for x
    x = 5,954,676,557.06/69,103.62
  6. Step 6: Final answer
    x = 86,170.26

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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.