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Finding the Fourth Proportional to 101,484.12, 152,109.54 and 68,163.96

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Solution

The fourth proportional to 101,484.12, 152,109.54 and 68,163.96 is: 102,167.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,484.12 : 152,109.54 = 68,163.96 : x
  2. Step 2: Convert to fraction form
    101,484.12/152,109.54 = 68,163.96/x
  3. Step 3: Cross multiply
    101,484.12x = 152,109.54 × 68,163.96
  4. Step 4: Simplify right side
    101,484.12x = 10,368,388,600.18
  5. Step 5: Solve for x
    x = 10,368,388,600.18/101,484.12
  6. Step 6: Final answer
    x = 102,167.60

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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.