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Finding the Fourth Proportional to 108,691.47, 163,037.21 and 33,821.96

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Solution

The fourth proportional to 108,691.47, 163,037.21 and 33,821.96 is: 50,732.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,691.47 : 163,037.21 = 33,821.96 : x
  2. Step 2: Convert to fraction form
    108,691.47/163,037.21 = 33,821.96/x
  3. Step 3: Cross multiply
    108,691.47x = 163,037.21 × 33,821.96
  4. Step 4: Simplify right side
    108,691.47x = 5,514,237,010.84
  5. Step 5: Solve for x
    x = 5,514,237,010.84/108,691.47
  6. Step 6: Final answer
    x = 50,732.93

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1.5x scale

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.