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Finding the Fourth Proportional to 101,069.28, 151,655.04 and 67,358.30

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Solution

The fourth proportional to 101,069.28, 151,655.04 and 67,358.30 is: 101,071.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,069.28 : 151,655.04 = 67,358.30 : x
  2. Step 2: Convert to fraction form
    101,069.28/151,655.04 = 67,358.30/x
  3. Step 3: Cross multiply
    101,069.28x = 151,655.04 × 67,358.30
  4. Step 4: Simplify right side
    101,069.28x = 10,215,224,922.56
  5. Step 5: Solve for x
    x = 10,215,224,922.56/101,069.28
  6. Step 6: Final answer
    x = 101,071.51

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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.