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Finding the Fourth Proportional to 111,848.74, 167,632.64 and 66,903.26

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Solution

The fourth proportional to 111,848.74, 167,632.64 and 66,903.26 is: 100,270.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,848.74 : 167,632.64 = 66,903.26 : x
  2. Step 2: Convert to fraction form
    111,848.74/167,632.64 = 66,903.26/x
  3. Step 3: Cross multiply
    111,848.74x = 167,632.64 × 66,903.26
  4. Step 4: Simplify right side
    111,848.74x = 11,215,170,098.41
  5. Step 5: Solve for x
    x = 11,215,170,098.41/111,848.74
  6. Step 6: Final answer
    x = 100,270.87

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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.