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Finding the Fourth Proportional to 192,031.80, 288,047.70 and 151,942.20

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Solution

The fourth proportional to 192,031.80, 288,047.70 and 151,942.20 is: 227,913.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,031.80 : 288,047.70 = 151,942.20 : x
  2. Step 2: Convert to fraction form
    192,031.80/288,047.70 = 151,942.20/x
  3. Step 3: Cross multiply
    192,031.80x = 288,047.70 × 151,942.20
  4. Step 4: Simplify right side
    192,031.80x = 43,766,601,242.94
  5. Step 5: Solve for x
    x = 43,766,601,242.94/192,031.80
  6. Step 6: Final answer
    x = 227,913.30

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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.