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Finding the Fourth Proportional to 161,518.25, 242,311.99 and 49,207.51

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Solution

The fourth proportional to 161,518.25, 242,311.99 and 49,207.51 is: 73,821.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,518.25 : 242,311.99 = 49,207.51 : x
  2. Step 2: Convert to fraction form
    161,518.25/242,311.99 = 49,207.51/x
  3. Step 3: Cross multiply
    161,518.25x = 242,311.99 × 49,207.51
  4. Step 4: Simplify right side
    161,518.25x = 11,923,569,671.04
  5. Step 5: Solve for x
    x = 11,923,569,671.04/161,518.25
  6. Step 6: Final answer
    x = 73,821.81

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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.