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Finding the Fourth Proportional to 111,462.60, 167,240.79 and 69,377.88

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Solution

The fourth proportional to 111,462.60, 167,240.79 and 69,377.88 is: 104,096.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,462.60 : 167,240.79 = 69,377.88 : x
  2. Step 2: Convert to fraction form
    111,462.60/167,240.79 = 69,377.88/x
  3. Step 3: Cross multiply
    111,462.60x = 167,240.79 × 69,377.88
  4. Step 4: Simplify right side
    111,462.60x = 11,602,811,459.73
  5. Step 5: Solve for x
    x = 11,602,811,459.73/111,462.60
  6. Step 6: Final answer
    x = 104,096.01

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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.