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Finding the Fourth Proportional to 111,390.60, 167,012.10 and 61,494.60

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Solution

The fourth proportional to 111,390.60, 167,012.10 and 61,494.60 is: 92,201.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,390.60 : 167,012.10 = 61,494.60 : x
  2. Step 2: Convert to fraction form
    111,390.60/167,012.10 = 61,494.60/x
  3. Step 3: Cross multiply
    111,390.60x = 167,012.10 × 61,494.60
  4. Step 4: Simplify right side
    111,390.60x = 10,270,342,284.66
  5. Step 5: Solve for x
    x = 10,270,342,284.66/111,390.60
  6. Step 6: Final answer
    x = 92,201.16

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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.