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Finding the Fourth Proportional to 111,796.18, 154,264.70 and 75,576.41

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Solution

The fourth proportional to 111,796.18, 154,264.70 and 75,576.41 is: 104,285.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,796.18 : 154,264.70 = 75,576.41 : x
  2. Step 2: Convert to fraction form
    111,796.18/154,264.70 = 75,576.41/x
  3. Step 3: Cross multiply
    111,796.18x = 154,264.70 × 75,576.41
  4. Step 4: Simplify right side
    111,796.18x = 11,658,772,654.46
  5. Step 5: Solve for x
    x = 11,658,772,654.46/111,796.18
  6. Step 6: Final answer
    x = 104,285.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.