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Finding the Fourth Proportional to 68,732.60, 103,097.46 and 37,157.72

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Solution

The fourth proportional to 68,732.60, 103,097.46 and 37,157.72 is: 55,735.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,732.60 : 103,097.46 = 37,157.72 : x
  2. Step 2: Convert to fraction form
    68,732.60/103,097.46 = 37,157.72/x
  3. Step 3: Cross multiply
    68,732.60x = 103,097.46 × 37,157.72
  4. Step 4: Simplify right side
    68,732.60x = 3,830,866,551.39
  5. Step 5: Solve for x
    x = 3,830,866,551.39/68,732.60
  6. Step 6: Final answer
    x = 55,735.80

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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.