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Finding the Fourth Proportional to 110,402.62, 165,628.50 and 40,281.91

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Solution

The fourth proportional to 110,402.62, 165,628.50 and 40,281.91 is: 60,431.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,402.62 : 165,628.50 = 40,281.91 : x
  2. Step 2: Convert to fraction form
    110,402.62/165,628.50 = 40,281.91/x
  3. Step 3: Cross multiply
    110,402.62x = 165,628.50 × 40,281.91
  4. Step 4: Simplify right side
    110,402.62x = 6,671,832,330.44
  5. Step 5: Solve for x
    x = 6,671,832,330.44/110,402.62
  6. Step 6: Final answer
    x = 60,431.83

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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.