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Finding the Fourth Proportional to 111,866, 167,662.20 and 52,622.96

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Solution

The fourth proportional to 111,866, 167,662.20 and 52,622.96 is: 78,870.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,866 : 167,662.20 = 52,622.96 : x
  2. Step 2: Convert to fraction form
    111,866/167,662.20 = 52,622.96/x
  3. Step 3: Cross multiply
    111,866x = 167,662.20 × 52,622.96
  4. Step 4: Simplify right side
    111,866x = 8,822,881,244.11
  5. Step 5: Solve for x
    x = 8,822,881,244.11/111,866
  6. Step 6: Final answer
    x = 78,870.09

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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.