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Finding the Fourth Proportional to 69,230.80, 103,894.80 and 29,816.20

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Solution

The fourth proportional to 69,230.80, 103,894.80 and 29,816.20 is: 44,745.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,230.80 : 103,894.80 = 29,816.20 : x
  2. Step 2: Convert to fraction form
    69,230.80/103,894.80 = 29,816.20/x
  3. Step 3: Cross multiply
    69,230.80x = 103,894.80 × 29,816.20
  4. Step 4: Simplify right side
    69,230.80x = 3,097,748,135.76
  5. Step 5: Solve for x
    x = 3,097,748,135.76/69,230.80
  6. Step 6: Final answer
    x = 44,745.23

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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.