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Finding the Fourth Proportional to 69,933.76, 104,889.72 and 38,359.32

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Solution

The fourth proportional to 69,933.76, 104,889.72 and 38,359.32 is: 57,532.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,933.76 : 104,889.72 = 38,359.32 : x
  2. Step 2: Convert to fraction form
    69,933.76/104,889.72 = 38,359.32/x
  3. Step 3: Cross multiply
    69,933.76x = 104,889.72 × 38,359.32
  4. Step 4: Simplify right side
    69,933.76x = 4,023,498,334.19
  5. Step 5: Solve for x
    x = 4,023,498,334.19/69,933.76
  6. Step 6: Final answer
    x = 57,532.99

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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.