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Finding the Fourth Proportional to 111,940.10, 167,910.15 and 97,360.10

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Solution

The fourth proportional to 111,940.10, 167,910.15 and 97,360.10 is: 146,040.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,940.10 : 167,910.15 = 97,360.10 : x
  2. Step 2: Convert to fraction form
    111,940.10/167,910.15 = 97,360.10/x
  3. Step 3: Cross multiply
    111,940.10x = 167,910.15 × 97,360.10
  4. Step 4: Simplify right side
    111,940.10x = 16,347,748,995.02
  5. Step 5: Solve for x
    x = 16,347,748,995.02/111,940.10
  6. Step 6: Final answer
    x = 146,040.15

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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.