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Finding the Fourth Proportional to 111,710.10, 167,520.60 and 36,809.40

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Solution

The fourth proportional to 111,710.10, 167,520.60 and 36,809.40 is: 55,199.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,710.10 : 167,520.60 = 36,809.40 : x
  2. Step 2: Convert to fraction form
    111,710.10/167,520.60 = 36,809.40/x
  3. Step 3: Cross multiply
    111,710.10x = 167,520.60 × 36,809.40
  4. Step 4: Simplify right side
    111,710.10x = 6,166,332,773.64
  5. Step 5: Solve for x
    x = 6,166,332,773.64/111,710.10
  6. Step 6: Final answer
    x = 55,199.42

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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.