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Finding the Fourth Proportional to 114,991.67, 172,515.18 and 48,450.83

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Solution

The fourth proportional to 114,991.67, 172,515.18 and 48,450.83 is: 72,687.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,991.67 : 172,515.18 = 48,450.83 : x
  2. Step 2: Convert to fraction form
    114,991.67/172,515.18 = 48,450.83/x
  3. Step 3: Cross multiply
    114,991.67x = 172,515.18 × 48,450.83
  4. Step 4: Simplify right side
    114,991.67x = 8,358,502,796.02
  5. Step 5: Solve for x
    x = 8,358,502,796.02/114,991.67
  6. Step 6: Final answer
    x = 72,687.90

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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.