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Finding the Fourth Proportional to 111,166.35, 166,675.73 and 61,270.35

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Solution

The fourth proportional to 111,166.35, 166,675.73 and 61,270.35 is: 91,864.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,166.35 : 166,675.73 = 61,270.35 : x
  2. Step 2: Convert to fraction form
    111,166.35/166,675.73 = 61,270.35/x
  3. Step 3: Cross multiply
    111,166.35x = 166,675.73 × 61,270.35
  4. Step 4: Simplify right side
    111,166.35x = 10,212,280,007.25
  5. Step 5: Solve for x
    x = 10,212,280,007.25/111,166.35
  6. Step 6: Final answer
    x = 91,864.85

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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.