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Finding the Fourth Proportional to 71,069.04, 106,580.87 and 28,949.04

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Solution

The fourth proportional to 71,069.04, 106,580.87 and 28,949.04 is: 43,414.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,069.04 : 106,580.87 = 28,949.04 : x
  2. Step 2: Convert to fraction form
    71,069.04/106,580.87 = 28,949.04/x
  3. Step 3: Cross multiply
    71,069.04x = 106,580.87 × 28,949.04
  4. Step 4: Simplify right side
    71,069.04x = 3,085,413,868.86
  5. Step 5: Solve for x
    x = 3,085,413,868.86/71,069.04
  6. Step 6: Final answer
    x = 43,414.32

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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.