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Finding the Fourth Proportional to 111,606.74, 167,267.75 and 52,311.77

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Solution

The fourth proportional to 111,606.74, 167,267.75 and 52,311.77 is: 78,400.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,606.74 : 167,267.75 = 52,311.77 : x
  2. Step 2: Convert to fraction form
    111,606.74/167,267.75 = 52,311.77/x
  3. Step 3: Cross multiply
    111,606.74x = 167,267.75 × 52,311.77
  4. Step 4: Simplify right side
    111,606.74x = 8,750,070,968.52
  5. Step 5: Solve for x
    x = 8,750,070,968.52/111,606.74
  6. Step 6: Final answer
    x = 78,400.92

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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.