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Finding the Fourth Proportional to 67,711.78, 101,529.69 and 46,388.59

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Solution

The fourth proportional to 67,711.78, 101,529.69 and 46,388.59 is: 69,556.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,711.78 : 101,529.69 = 46,388.59 : x
  2. Step 2: Convert to fraction form
    67,711.78/101,529.69 = 46,388.59/x
  3. Step 3: Cross multiply
    67,711.78x = 101,529.69 × 46,388.59
  4. Step 4: Simplify right side
    67,711.78x = 4,709,819,162.24
  5. Step 5: Solve for x
    x = 4,709,819,162.24/67,711.78
  6. Step 6: Final answer
    x = 69,556.87

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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.