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Finding the Fourth Proportional to 108,817.93, 150,183.41 and 61,073.90

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Solution

The fourth proportional to 108,817.93, 150,183.41 and 61,073.90 is: 84,290.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,817.93 : 150,183.41 = 61,073.90 : x
  2. Step 2: Convert to fraction form
    108,817.93/150,183.41 = 61,073.90/x
  3. Step 3: Cross multiply
    108,817.93x = 150,183.41 × 61,073.90
  4. Step 4: Simplify right side
    108,817.93x = 9,172,285,507.71
  5. Step 5: Solve for x
    x = 9,172,285,507.71/108,817.93
  6. Step 6: Final answer
    x = 84,290.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.