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Finding the Fourth Proportional to 111,112.92, 166,692.42 and 37,239

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Solution

The fourth proportional to 111,112.92, 166,692.42 and 37,239 is: 55,866.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,112.92 : 166,692.42 = 37,239 : x
  2. Step 2: Convert to fraction form
    111,112.92/166,692.42 = 37,239/x
  3. Step 3: Cross multiply
    111,112.92x = 166,692.42 × 37,239
  4. Step 4: Simplify right side
    111,112.92x = 6,207,459,028.38
  5. Step 5: Solve for x
    x = 6,207,459,028.38/111,112.92
  6. Step 6: Final answer
    x = 55,866.22

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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.