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Finding the Fourth Proportional to 93,899.90, 140,590.65 and 73,163.90

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Solution

The fourth proportional to 93,899.90, 140,590.65 and 73,163.90 is: 109,543.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,899.90 : 140,590.65 = 73,163.90 : x
  2. Step 2: Convert to fraction form
    93,899.90/140,590.65 = 73,163.90/x
  3. Step 3: Cross multiply
    93,899.90x = 140,590.65 × 73,163.90
  4. Step 4: Simplify right side
    93,899.90x = 10,286,160,257.54
  5. Step 5: Solve for x
    x = 10,286,160,257.54/93,899.90
  6. Step 6: Final answer
    x = 109,543.89

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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.