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Finding the Fourth Proportional to 68,337.60, 102,592.80 and 36,772.80

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Solution

The fourth proportional to 68,337.60, 102,592.80 and 36,772.80 is: 55,205.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,337.60 : 102,592.80 = 36,772.80 : x
  2. Step 2: Convert to fraction form
    68,337.60/102,592.80 = 36,772.80/x
  3. Step 3: Cross multiply
    68,337.60x = 102,592.80 × 36,772.80
  4. Step 4: Simplify right side
    68,337.60x = 3,772,624,515.84
  5. Step 5: Solve for x
    x = 3,772,624,515.84/68,337.60
  6. Step 6: Final answer
    x = 55,205.69

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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.