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Finding the Fourth Proportional to 110,487.60, 165,622.05 and 54,281.70

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Solution

The fourth proportional to 110,487.60, 165,622.05 and 54,281.70 is: 81,368.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,487.60 : 165,622.05 = 54,281.70 : x
  2. Step 2: Convert to fraction form
    110,487.60/165,622.05 = 54,281.70/x
  3. Step 3: Cross multiply
    110,487.60x = 165,622.05 × 54,281.70
  4. Step 4: Simplify right side
    110,487.60x = 8,990,246,431.49
  5. Step 5: Solve for x
    x = 8,990,246,431.49/110,487.60
  6. Step 6: Final answer
    x = 81,368.83

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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.