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Finding the Fourth Proportional to 108,954.52, 150,368.81 and 65,957.49

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Solution

The fourth proportional to 108,954.52, 150,368.81 and 65,957.49 is: 91,028.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,954.52 : 150,368.81 = 65,957.49 : x
  2. Step 2: Convert to fraction form
    108,954.52/150,368.81 = 65,957.49/x
  3. Step 3: Cross multiply
    108,954.52x = 150,368.81 × 65,957.49
  4. Step 4: Simplify right side
    108,954.52x = 9,917,948,952.10
  5. Step 5: Solve for x
    x = 9,917,948,952.10/108,954.52
  6. Step 6: Final answer
    x = 91,028.34

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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.