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Finding the Fourth Proportional to 220,649.84, 331,026.72 and 62,880.56

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Solution

The fourth proportional to 220,649.84, 331,026.72 and 62,880.56 is: 94,335.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,649.84 : 331,026.72 = 62,880.56 : x
  2. Step 2: Convert to fraction form
    220,649.84/331,026.72 = 62,880.56/x
  3. Step 3: Cross multiply
    220,649.84x = 331,026.72 × 62,880.56
  4. Step 4: Simplify right side
    220,649.84x = 20,815,145,528.56
  5. Step 5: Solve for x
    x = 20,815,145,528.56/220,649.84
  6. Step 6: Final answer
    x = 94,335.65

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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.