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Finding the Fourth Proportional to 71,067.48, 106,601.04 and 66,737.04

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Solution

The fourth proportional to 71,067.48, 106,601.04 and 66,737.04 is: 100,105.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,067.48 : 106,601.04 = 66,737.04 : x
  2. Step 2: Convert to fraction form
    71,067.48/106,601.04 = 66,737.04/x
  3. Step 3: Cross multiply
    71,067.48x = 106,601.04 × 66,737.04
  4. Step 4: Simplify right side
    71,067.48x = 7,114,237,870.52
  5. Step 5: Solve for x
    x = 7,114,237,870.52/71,067.48
  6. Step 6: Final answer
    x = 100,105.39

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1.5x scale

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.