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Finding the Fourth Proportional to 101,462.96, 151,874.80 and 69,686.64

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Solution

The fourth proportional to 101,462.96, 151,874.80 and 69,686.64 is: 104,310.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,462.96 : 151,874.80 = 69,686.64 : x
  2. Step 2: Convert to fraction form
    101,462.96/151,874.80 = 69,686.64/x
  3. Step 3: Cross multiply
    101,462.96x = 151,874.80 × 69,686.64
  4. Step 4: Simplify right side
    101,462.96x = 10,583,644,512.67
  5. Step 5: Solve for x
    x = 10,583,644,512.67/101,462.96
  6. Step 6: Final answer
    x = 104,310.43

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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.