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Finding the Fourth Proportional to 161,766.41, 242,640.71 and 49,446.56

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Solution

The fourth proportional to 161,766.41, 242,640.71 and 49,446.56 is: 74,167.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,766.41 : 242,640.71 = 49,446.56 : x
  2. Step 2: Convert to fraction form
    161,766.41/242,640.71 = 49,446.56/x
  3. Step 3: Cross multiply
    161,766.41x = 242,640.71 × 49,446.56
  4. Step 4: Simplify right side
    161,766.41x = 11,997,746,965.02
  5. Step 5: Solve for x
    x = 11,997,746,965.02/161,766.41
  6. Step 6: Final answer
    x = 74,167.11

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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.