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Finding the Fourth Proportional to 220,083.40, 330,829.80 and 204,482.80

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Solution

The fourth proportional to 220,083.40, 330,829.80 and 204,482.80 is: 307,378.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,083.40 : 330,829.80 = 204,482.80 : x
  2. Step 2: Convert to fraction form
    220,083.40/330,829.80 = 204,482.80/x
  3. Step 3: Cross multiply
    220,083.40x = 330,829.80 × 204,482.80
  4. Step 4: Simplify right side
    220,083.40x = 67,649,003,827.44
  5. Step 5: Solve for x
    x = 67,649,003,827.44/220,083.40
  6. Step 6: Final answer
    x = 307,378.95

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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.