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Finding the Fourth Proportional to 101,061.87, 151,697.94 and 74,437.92

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Solution

The fourth proportional to 101,061.87, 151,697.94 and 74,437.92 is: 111,734.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,061.87 : 151,697.94 = 74,437.92 : x
  2. Step 2: Convert to fraction form
    101,061.87/151,697.94 = 74,437.92/x
  3. Step 3: Cross multiply
    101,061.87x = 151,697.94 × 74,437.92
  4. Step 4: Simplify right side
    101,061.87x = 11,292,079,121.88
  5. Step 5: Solve for x
    x = 11,292,079,121.88/101,061.87
  6. Step 6: Final answer
    x = 111,734.32

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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.