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Finding the Fourth Proportional to 148,291.20, 222,436.80 and 133,516.80

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Solution

The fourth proportional to 148,291.20, 222,436.80 and 133,516.80 is: 200,275.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,291.20 : 222,436.80 = 133,516.80 : x
  2. Step 2: Convert to fraction form
    148,291.20/222,436.80 = 133,516.80/x
  3. Step 3: Cross multiply
    148,291.20x = 222,436.80 × 133,516.80
  4. Step 4: Simplify right side
    148,291.20x = 29,699,049,738.24
  5. Step 5: Solve for x
    x = 29,699,049,738.24/148,291.20
  6. Step 6: Final answer
    x = 200,275.20

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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.