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Finding the Fourth Proportional to 192,236.10, 288,008.55 and 156,984.90

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Solution

The fourth proportional to 192,236.10, 288,008.55 and 156,984.90 is: 235,195.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,236.10 : 288,008.55 = 156,984.90 : x
  2. Step 2: Convert to fraction form
    192,236.10/288,008.55 = 156,984.90/x
  3. Step 3: Cross multiply
    192,236.10x = 288,008.55 × 156,984.90
  4. Step 4: Simplify right side
    192,236.10x = 45,212,993,420.90
  5. Step 5: Solve for x
    x = 45,212,993,420.90/192,236.10
  6. Step 6: Final answer
    x = 235,195.12

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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.