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Finding the Fourth Proportional to 111,190.64, 166,812.53 and 36,310.94

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Solution

The fourth proportional to 111,190.64, 166,812.53 and 36,310.94 is: 54,475.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,190.64 : 166,812.53 = 36,310.94 : x
  2. Step 2: Convert to fraction form
    111,190.64/166,812.53 = 36,310.94/x
  3. Step 3: Cross multiply
    111,190.64x = 166,812.53 × 36,310.94
  4. Step 4: Simplify right side
    111,190.64x = 6,057,118,752.46
  5. Step 5: Solve for x
    x = 6,057,118,752.46/111,190.64
  6. Step 6: Final answer
    x = 54,475.08

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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.