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Finding the Fourth Proportional to 192,007.20, 288,075.60 and 92,229.60

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Solution

The fourth proportional to 192,007.20, 288,075.60 and 92,229.60 is: 138,375.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,007.20 : 288,075.60 = 92,229.60 : x
  2. Step 2: Convert to fraction form
    192,007.20/288,075.60 = 92,229.60/x
  3. Step 3: Cross multiply
    192,007.20x = 288,075.60 × 92,229.60
  4. Step 4: Simplify right side
    192,007.20x = 26,569,097,357.76
  5. Step 5: Solve for x
    x = 26,569,097,357.76/192,007.20
  6. Step 6: Final answer
    x = 138,375.53

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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.