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Finding the Fourth Proportional to 188,626.80, 260,302.92 and 103,745.04

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Solution

The fourth proportional to 188,626.80, 260,302.92 and 103,745.04 is: 143,167.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,626.80 : 260,302.92 = 103,745.04 : x
  2. Step 2: Convert to fraction form
    188,626.80/260,302.92 = 103,745.04/x
  3. Step 3: Cross multiply
    188,626.80x = 260,302.92 × 103,745.04
  4. Step 4: Simplify right side
    188,626.80x = 27,005,136,847.52
  5. Step 5: Solve for x
    x = 27,005,136,847.52/188,626.80
  6. Step 6: Final answer
    x = 143,167.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.