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Finding the Fourth Proportional to 108,877.73, 150,247.37 and 61,133.09

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Solution

The fourth proportional to 108,877.73, 150,247.37 and 61,133.09 is: 84,361.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,877.73 : 150,247.37 = 61,133.09 : x
  2. Step 2: Convert to fraction form
    108,877.73/150,247.37 = 61,133.09/x
  3. Step 3: Cross multiply
    108,877.73x = 150,247.37 × 61,133.09
  4. Step 4: Simplify right side
    108,877.73x = 9,185,084,935.57
  5. Step 5: Solve for x
    x = 9,185,084,935.57/108,877.73
  6. Step 6: Final answer
    x = 84,361.47

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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.