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Finding the Fourth Proportional to 308,907.72, 463,399.74 and 109,186.92

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Solution

The fourth proportional to 308,907.72, 463,399.74 and 109,186.92 is: 163,793.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,907.72 : 463,399.74 = 109,186.92 : x
  2. Step 2: Convert to fraction form
    308,907.72/463,399.74 = 109,186.92/x
  3. Step 3: Cross multiply
    308,907.72x = 463,399.74 × 109,186.92
  4. Step 4: Simplify right side
    308,907.72x = 50,597,190,339.40
  5. Step 5: Solve for x
    x = 50,597,190,339.40/308,907.72
  6. Step 6: Final answer
    x = 163,793.87

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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.