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Finding the Fourth Proportional to 187,396.48, 280,644.30 and 107,191.30

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Solution

The fourth proportional to 187,396.48, 280,644.30 and 107,191.30 is: 160,529.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,396.48 : 280,644.30 = 107,191.30 : x
  2. Step 2: Convert to fraction form
    187,396.48/280,644.30 = 107,191.30/x
  3. Step 3: Cross multiply
    187,396.48x = 280,644.30 × 107,191.30
  4. Step 4: Simplify right side
    187,396.48x = 30,082,627,354.59
  5. Step 5: Solve for x
    x = 30,082,627,354.59/187,396.48
  6. Step 6: Final answer
    x = 160,529.31

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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.