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Finding the Fourth Proportional to 108,431.93, 162,616.69 and 37,351.70

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Solution

The fourth proportional to 108,431.93, 162,616.69 and 37,351.70 is: 56,016.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,431.93 : 162,616.69 = 37,351.70 : x
  2. Step 2: Convert to fraction form
    108,431.93/162,616.69 = 37,351.70/x
  3. Step 3: Cross multiply
    108,431.93x = 162,616.69 × 37,351.70
  4. Step 4: Simplify right side
    108,431.93x = 6,074,009,819.87
  5. Step 5: Solve for x
    x = 6,074,009,819.87/108,431.93
  6. Step 6: Final answer
    x = 56,016.80

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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.