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Finding the Fourth Proportional to 108,489.26, 162,671.52 and 57,825.88

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Solution

The fourth proportional to 108,489.26, 162,671.52 and 57,825.88 is: 86,705.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,489.26 : 162,671.52 = 57,825.88 : x
  2. Step 2: Convert to fraction form
    108,489.26/162,671.52 = 57,825.88/x
  3. Step 3: Cross multiply
    108,489.26x = 162,671.52 × 57,825.88
  4. Step 4: Simplify right side
    108,489.26x = 9,406,623,794.94
  5. Step 5: Solve for x
    x = 9,406,623,794.94/108,489.26
  6. Step 6: Final answer
    x = 86,705.58

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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.