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Finding the Fourth Proportional to 108,944.94, 150,335.82 and 61,188.96

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Solution

The fourth proportional to 108,944.94, 150,335.82 and 61,188.96 is: 84,436.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,944.94 : 150,335.82 = 61,188.96 : x
  2. Step 2: Convert to fraction form
    108,944.94/150,335.82 = 61,188.96/x
  3. Step 3: Cross multiply
    108,944.94x = 150,335.82 × 61,188.96
  4. Step 4: Simplify right side
    108,944.94x = 9,198,892,476.55
  5. Step 5: Solve for x
    x = 9,198,892,476.55/108,944.94
  6. Step 6: Final answer
    x = 84,436.16

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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.