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Finding the Fourth Proportional to 231,843.60, 347,765.40 and 192,477.60

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Solution

The fourth proportional to 231,843.60, 347,765.40 and 192,477.60 is: 288,716.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,843.60 : 347,765.40 = 192,477.60 : x
  2. Step 2: Convert to fraction form
    231,843.60/347,765.40 = 192,477.60/x
  3. Step 3: Cross multiply
    231,843.60x = 347,765.40 × 192,477.60
  4. Step 4: Simplify right side
    231,843.60x = 66,937,049,555.04
  5. Step 5: Solve for x
    x = 66,937,049,555.04/231,843.60
  6. Step 6: Final answer
    x = 288,716.40

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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.