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Finding the Fourth Proportional to 108,486.47, 162,745.11 and 33,612.50

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Solution

The fourth proportional to 108,486.47, 162,745.11 and 33,612.50 is: 50,423.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,486.47 : 162,745.11 = 33,612.50 : x
  2. Step 2: Convert to fraction form
    108,486.47/162,745.11 = 33,612.50/x
  3. Step 3: Cross multiply
    108,486.47x = 162,745.11 × 33,612.50
  4. Step 4: Simplify right side
    108,486.47x = 5,470,270,009.88
  5. Step 5: Solve for x
    x = 5,470,270,009.88/108,486.47
  6. Step 6: Final answer
    x = 50,423.52

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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.