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Finding the Fourth Proportional to 308,563.65, 462,754.76 and 131,069.25

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Solution

The fourth proportional to 308,563.65, 462,754.76 and 131,069.25 is: 196,565.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,563.65 : 462,754.76 = 131,069.25 : x
  2. Step 2: Convert to fraction form
    308,563.65/462,754.76 = 131,069.25/x
  3. Step 3: Cross multiply
    308,563.65x = 462,754.76 × 131,069.25
  4. Step 4: Simplify right side
    308,563.65x = 60,652,918,671.78
  5. Step 5: Solve for x
    x = 60,652,918,671.78/308,563.65
  6. Step 6: Final answer
    x = 196,565.34

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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.