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Finding the Fourth Proportional to 108,963.36, 163,461.48 and 38,837.28

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Solution

The fourth proportional to 108,963.36, 163,461.48 and 38,837.28 is: 58,261.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,963.36 : 163,461.48 = 38,837.28 : x
  2. Step 2: Convert to fraction form
    108,963.36/163,461.48 = 38,837.28/x
  3. Step 3: Cross multiply
    108,963.36x = 163,461.48 × 38,837.28
  4. Step 4: Simplify right side
    108,963.36x = 6,348,399,267.97
  5. Step 5: Solve for x
    x = 6,348,399,267.97/108,963.36
  6. Step 6: Final answer
    x = 58,261.78

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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.