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Finding the Fourth Proportional to 68,374.20, 102,666.90 and 37,270.20

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Solution

The fourth proportional to 68,374.20, 102,666.90 and 37,270.20 is: 55,962.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,374.20 : 102,666.90 = 37,270.20 : x
  2. Step 2: Convert to fraction form
    68,374.20/102,666.90 = 37,270.20/x
  3. Step 3: Cross multiply
    68,374.20x = 102,666.90 × 37,270.20
  4. Step 4: Simplify right side
    68,374.20x = 3,826,415,896.38
  5. Step 5: Solve for x
    x = 3,826,415,896.38/68,374.20
  6. Step 6: Final answer
    x = 55,962.86

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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.