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Finding the Fourth Proportional to 192,533.78, 288,739.26 and 66,143.57

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Solution

The fourth proportional to 192,533.78, 288,739.26 and 66,143.57 is: 99,194.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,533.78 : 288,739.26 = 66,143.57 : x
  2. Step 2: Convert to fraction form
    192,533.78/288,739.26 = 66,143.57/x
  3. Step 3: Cross multiply
    192,533.78x = 288,739.26 × 66,143.57
  4. Step 4: Simplify right side
    192,533.78x = 19,098,244,011.86
  5. Step 5: Solve for x
    x = 19,098,244,011.86/192,533.78
  6. Step 6: Final answer
    x = 99,194.25

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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.