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Finding the Fourth Proportional to 68,783.54, 103,172.43 and 22,035.38

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Solution

The fourth proportional to 68,783.54, 103,172.43 and 22,035.38 is: 33,052.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,783.54 : 103,172.43 = 22,035.38 : x
  2. Step 2: Convert to fraction form
    68,783.54/103,172.43 = 22,035.38/x
  3. Step 3: Cross multiply
    68,783.54x = 103,172.43 × 22,035.38
  4. Step 4: Simplify right side
    68,783.54x = 2,273,443,700.57
  5. Step 5: Solve for x
    x = 2,273,443,700.57/68,783.54
  6. Step 6: Final answer
    x = 33,052.15

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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.