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Finding the Fourth Proportional to 220,478.84, 330,745.44 and 62,719.58

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Solution

The fourth proportional to 220,478.84, 330,745.44 and 62,719.58 is: 94,087.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,478.84 : 330,745.44 = 62,719.58 : x
  2. Step 2: Convert to fraction form
    220,478.84/330,745.44 = 62,719.58/x
  3. Step 3: Cross multiply
    220,478.84x = 330,745.44 × 62,719.58
  4. Step 4: Simplify right side
    220,478.84x = 20,744,215,083.72
  5. Step 5: Solve for x
    x = 20,744,215,083.72/220,478.84
  6. Step 6: Final answer
    x = 94,087.10

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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.