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Finding the Fourth Proportional to 69,992.91, 104,806.35 and 38,337.12

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Solution

The fourth proportional to 69,992.91, 104,806.35 and 38,337.12 is: 57,405.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,992.91 : 104,806.35 = 38,337.12 : x
  2. Step 2: Convert to fraction form
    69,992.91/104,806.35 = 38,337.12/x
  3. Step 3: Cross multiply
    69,992.91x = 104,806.35 × 38,337.12
  4. Step 4: Simplify right side
    69,992.91x = 4,017,973,616.71
  5. Step 5: Solve for x
    x = 4,017,973,616.71/69,992.91
  6. Step 6: Final answer
    x = 57,405.44

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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.