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Finding the Fourth Proportional to 101,059.99, 151,695.13 and 74,436.05

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Solution

The fourth proportional to 101,059.99, 151,695.13 and 74,436.05 is: 111,731.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,059.99 : 151,695.13 = 74,436.05 : x
  2. Step 2: Convert to fraction form
    101,059.99/151,695.13 = 74,436.05/x
  3. Step 3: Cross multiply
    101,059.99x = 151,695.13 × 74,436.05
  4. Step 4: Simplify right side
    101,059.99x = 11,291,585,616.01
  5. Step 5: Solve for x
    x = 11,291,585,616.01/101,059.99
  6. Step 6: Final answer
    x = 111,731.51

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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.