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Finding the Fourth Proportional to 68,686.62, 103,029.93 and 37,504.86

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Solution

The fourth proportional to 68,686.62, 103,029.93 and 37,504.86 is: 56,257.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,686.62 : 103,029.93 = 37,504.86 : x
  2. Step 2: Convert to fraction form
    68,686.62/103,029.93 = 37,504.86/x
  3. Step 3: Cross multiply
    68,686.62x = 103,029.93 × 37,504.86
  4. Step 4: Simplify right side
    68,686.62x = 3,864,123,100.46
  5. Step 5: Solve for x
    x = 3,864,123,100.46/68,686.62
  6. Step 6: Final answer
    x = 56,257.29

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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.