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Finding the Fourth Proportional to 106,363.39, 159,572.76 and 39,808.75

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Solution

The fourth proportional to 106,363.39, 159,572.76 and 39,808.75 is: 59,723.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,363.39 : 159,572.76 = 39,808.75 : x
  2. Step 2: Convert to fraction form
    106,363.39/159,572.76 = 39,808.75/x
  3. Step 3: Cross multiply
    106,363.39x = 159,572.76 × 39,808.75
  4. Step 4: Simplify right side
    106,363.39x = 6,352,392,109.65
  5. Step 5: Solve for x
    x = 6,352,392,109.65/106,363.39
  6. Step 6: Final answer
    x = 59,723.48

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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.