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Finding the Fourth Proportional to 108,661.52, 163,055.82 and 45,476.36

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Solution

The fourth proportional to 108,661.52, 163,055.82 and 45,476.36 is: 68,241.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,661.52 : 163,055.82 = 45,476.36 : x
  2. Step 2: Convert to fraction form
    108,661.52/163,055.82 = 45,476.36/x
  3. Step 3: Cross multiply
    108,661.52x = 163,055.82 × 45,476.36
  4. Step 4: Simplify right side
    108,661.52x = 7,415,185,170.42
  5. Step 5: Solve for x
    x = 7,415,185,170.42/108,661.52
  6. Step 6: Final answer
    x = 68,241.13

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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.