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Finding the Fourth Proportional to 111,991.14, 168,004.53 and 37,113.93

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Solution

The fourth proportional to 111,991.14, 168,004.53 and 37,113.93 is: 55,676.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,991.14 : 168,004.53 = 37,113.93 : x
  2. Step 2: Convert to fraction form
    111,991.14/168,004.53 = 37,113.93/x
  3. Step 3: Cross multiply
    111,991.14x = 168,004.53 × 37,113.93
  4. Step 4: Simplify right side
    111,991.14x = 6,235,308,366.10
  5. Step 5: Solve for x
    x = 6,235,308,366.10/111,991.14
  6. Step 6: Final answer
    x = 55,676.80

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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.