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Finding the Fourth Proportional to 101,099.43, 151,526.16 and 71,525.79

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Solution

The fourth proportional to 101,099.43, 151,526.16 and 71,525.79 is: 107,201.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,099.43 : 151,526.16 = 71,525.79 : x
  2. Step 2: Convert to fraction form
    101,099.43/151,526.16 = 71,525.79/x
  3. Step 3: Cross multiply
    101,099.43x = 151,526.16 × 71,525.79
  4. Step 4: Simplify right side
    101,099.43x = 10,838,028,299.67
  5. Step 5: Solve for x
    x = 10,838,028,299.67/101,099.43
  6. Step 6: Final answer
    x = 107,201.68

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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.