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Finding the Fourth Proportional to 69,859.60, 104,706.87 and 29,866.88

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Solution

The fourth proportional to 69,859.60, 104,706.87 and 29,866.88 is: 44,765.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,859.60 : 104,706.87 = 29,866.88 : x
  2. Step 2: Convert to fraction form
    69,859.60/104,706.87 = 29,866.88/x
  3. Step 3: Cross multiply
    69,859.60x = 104,706.87 × 29,866.88
  4. Step 4: Simplify right side
    69,859.60x = 3,127,267,521.47
  5. Step 5: Solve for x
    x = 3,127,267,521.47/69,859.60
  6. Step 6: Final answer
    x = 44,765.04

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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.