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Finding the Fourth Proportional to 101,686.75, 152,583.32 and 73,836.87

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Solution

The fourth proportional to 101,686.75, 152,583.32 and 73,836.87 is: 110,793.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,686.75 : 152,583.32 = 73,836.87 : x
  2. Step 2: Convert to fraction form
    101,686.75/152,583.32 = 73,836.87/x
  3. Step 3: Cross multiply
    101,686.75x = 152,583.32 × 73,836.87
  4. Step 4: Simplify right side
    101,686.75x = 11,266,274,763.01
  5. Step 5: Solve for x
    x = 11,266,274,763.01/101,686.75
  6. Step 6: Final answer
    x = 110,793.93

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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.