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Finding the Fourth Proportional to 171,616.10, 257,424.15 and 161,993.30

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Solution

The fourth proportional to 171,616.10, 257,424.15 and 161,993.30 is: 242,989.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,616.10 : 257,424.15 = 161,993.30 : x
  2. Step 2: Convert to fraction form
    171,616.10/257,424.15 = 161,993.30/x
  3. Step 3: Cross multiply
    171,616.10x = 257,424.15 × 161,993.30
  4. Step 4: Simplify right side
    171,616.10x = 41,700,987,558.20
  5. Step 5: Solve for x
    x = 41,700,987,558.20/171,616.10
  6. Step 6: Final answer
    x = 242,989.95

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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.