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Finding the Fourth Proportional to 108,388.84, 162,471.66 and 61,542.76

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Solution

The fourth proportional to 108,388.84, 162,471.66 and 61,542.76 is: 92,250.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,388.84 : 162,471.66 = 61,542.76 : x
  2. Step 2: Convert to fraction form
    108,388.84/162,471.66 = 61,542.76/x
  3. Step 3: Cross multiply
    108,388.84x = 162,471.66 × 61,542.76
  4. Step 4: Simplify right side
    108,388.84x = 9,998,954,378.18
  5. Step 5: Solve for x
    x = 9,998,954,378.18/108,388.84
  6. Step 6: Final answer
    x = 92,250.77

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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.