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Finding the Fourth Proportional to 108,943.94, 150,334.44 and 61,187.96

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Solution

The fourth proportional to 108,943.94, 150,334.44 and 61,187.96 is: 84,434.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,943.94 : 150,334.44 = 61,187.96 : x
  2. Step 2: Convert to fraction form
    108,943.94/150,334.44 = 61,187.96/x
  3. Step 3: Cross multiply
    108,943.94x = 150,334.44 × 61,187.96
  4. Step 4: Simplify right side
    108,943.94x = 9,198,657,701.34
  5. Step 5: Solve for x
    x = 9,198,657,701.34/108,943.94
  6. Step 6: Final answer
    x = 84,434.78

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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.