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Finding the Fourth Proportional to 111,516, 167,331.36 and 74,101.92

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Solution

The fourth proportional to 111,516, 167,331.36 and 74,101.92 is: 111,191.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,516 : 167,331.36 = 74,101.92 : x
  2. Step 2: Convert to fraction form
    111,516/167,331.36 = 74,101.92/x
  3. Step 3: Cross multiply
    111,516x = 167,331.36 × 74,101.92
  4. Step 4: Simplify right side
    111,516x = 12,399,575,052.21
  5. Step 5: Solve for x
    x = 12,399,575,052.21/111,516
  6. Step 6: Final answer
    x = 111,191.00

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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.