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Finding the Fourth Proportional to 111,885.54, 167,828.81 and 45,326.94

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Solution

The fourth proportional to 111,885.54, 167,828.81 and 45,326.94 is: 67,990.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,885.54 : 167,828.81 = 45,326.94 : x
  2. Step 2: Convert to fraction form
    111,885.54/167,828.81 = 45,326.94/x
  3. Step 3: Cross multiply
    111,885.54x = 167,828.81 × 45,326.94
  4. Step 4: Simplify right side
    111,885.54x = 7,607,166,174.51
  5. Step 5: Solve for x
    x = 7,607,166,174.51/111,885.54
  6. Step 6: Final answer
    x = 67,990.61

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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.