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Finding the Fourth Proportional to 101,162.42, 151,625.47 and 76,121.98

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Solution

The fourth proportional to 101,162.42, 151,625.47 and 76,121.98 is: 114,094.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,162.42 : 151,625.47 = 76,121.98 : x
  2. Step 2: Convert to fraction form
    101,162.42/151,625.47 = 76,121.98/x
  3. Step 3: Cross multiply
    101,162.42x = 151,625.47 × 76,121.98
  4. Step 4: Simplify right side
    101,162.42x = 11,542,030,568.19
  5. Step 5: Solve for x
    x = 11,542,030,568.19/101,162.42
  6. Step 6: Final answer
    x = 114,094.05

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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.