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Finding the Fourth Proportional to 49,068.60, 73,602.90 and 12,132.60

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Solution

The fourth proportional to 49,068.60, 73,602.90 and 12,132.60 is: 18,198.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,068.60 : 73,602.90 = 12,132.60 : x
  2. Step 2: Convert to fraction form
    49,068.60/73,602.90 = 12,132.60/x
  3. Step 3: Cross multiply
    49,068.60x = 73,602.90 × 12,132.60
  4. Step 4: Simplify right side
    49,068.60x = 892,994,544.54
  5. Step 5: Solve for x
    x = 892,994,544.54/49,068.60
  6. Step 6: Final answer
    x = 18,198.90

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.