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Finding the Fourth Proportional to 220,175.20, 330,230.40 and 62,419.60

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Solution

The fourth proportional to 220,175.20, 330,230.40 and 62,419.60 is: 93,620.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,175.20 : 330,230.40 = 62,419.60 : x
  2. Step 2: Convert to fraction form
    220,175.20/330,230.40 = 62,419.60/x
  3. Step 3: Cross multiply
    220,175.20x = 330,230.40 × 62,419.60
  4. Step 4: Simplify right side
    220,175.20x = 20,612,849,475.84
  5. Step 5: Solve for x
    x = 20,612,849,475.84/220,175.20
  6. Step 6: Final answer
    x = 93,620.21

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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.