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Finding the Fourth Proportional to 104,565.99, 156,760.81 and 45,357.09

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Solution

The fourth proportional to 104,565.99, 156,760.81 and 45,357.09 is: 67,997.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,565.99 : 156,760.81 = 45,357.09 : x
  2. Step 2: Convert to fraction form
    104,565.99/156,760.81 = 45,357.09/x
  3. Step 3: Cross multiply
    104,565.99x = 156,760.81 × 45,357.09
  4. Step 4: Simplify right side
    104,565.99x = 7,110,214,167.64
  5. Step 5: Solve for x
    x = 7,110,214,167.64/104,565.99
  6. Step 6: Final answer
    x = 67,997.39

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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.