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Finding the Fourth Proportional to 192,563.90, 288,775.10 and 66,168.30

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Solution

The fourth proportional to 192,563.90, 288,775.10 and 66,168.30 is: 99,228.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,563.90 : 288,775.10 = 66,168.30 : x
  2. Step 2: Convert to fraction form
    192,563.90/288,775.10 = 66,168.30/x
  3. Step 3: Cross multiply
    192,563.90x = 288,775.10 × 66,168.30
  4. Step 4: Simplify right side
    192,563.90x = 19,107,757,449.33
  5. Step 5: Solve for x
    x = 19,107,757,449.33/192,563.90
  6. Step 6: Final answer
    x = 99,228.14

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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.