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Finding the Fourth Proportional to 111,576.58, 167,313.84 and 66,618.34

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Solution

The fourth proportional to 111,576.58, 167,313.84 and 66,618.34 is: 99,897.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,576.58 : 167,313.84 = 66,618.34 : x
  2. Step 2: Convert to fraction form
    111,576.58/167,313.84 = 66,618.34/x
  3. Step 3: Cross multiply
    111,576.58x = 167,313.84 × 66,618.34
  4. Step 4: Simplify right side
    111,576.58x = 11,146,170,279.83
  5. Step 5: Solve for x
    x = 11,146,170,279.83/111,576.58
  6. Step 6: Final answer
    x = 99,897.04

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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.