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Finding the Fourth Proportional to 221,274.76, 331,913.34 and 55,062.76

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Solution

The fourth proportional to 221,274.76, 331,913.34 and 55,062.76 is: 82,594.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,274.76 : 331,913.34 = 55,062.76 : x
  2. Step 2: Convert to fraction form
    221,274.76/331,913.34 = 55,062.76/x
  3. Step 3: Cross multiply
    221,274.76x = 331,913.34 × 55,062.76
  4. Step 4: Simplify right side
    221,274.76x = 18,276,064,581.22
  5. Step 5: Solve for x
    x = 18,276,064,581.22/221,274.76
  6. Step 6: Final answer
    x = 82,594.44

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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.