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Finding the Fourth Proportional to 173,876.20, 261,131.10 and 103,892.20

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Solution

The fourth proportional to 173,876.20, 261,131.10 and 103,892.20 is: 156,027.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,876.20 : 261,131.10 = 103,892.20 : x
  2. Step 2: Convert to fraction form
    173,876.20/261,131.10 = 103,892.20/x
  3. Step 3: Cross multiply
    173,876.20x = 261,131.10 × 103,892.20
  4. Step 4: Simplify right side
    173,876.20x = 27,129,484,467.42
  5. Step 5: Solve for x
    x = 27,129,484,467.42/173,876.20
  6. Step 6: Final answer
    x = 156,027.59

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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.