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Finding the Fourth Proportional to 111,708.51, 167,561.30 and 27,469.40

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Solution

The fourth proportional to 111,708.51, 167,561.30 and 27,469.40 is: 41,203.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,708.51 : 167,561.30 = 27,469.40 : x
  2. Step 2: Convert to fraction form
    111,708.51/167,561.30 = 27,469.40/x
  3. Step 3: Cross multiply
    111,708.51x = 167,561.30 × 27,469.40
  4. Step 4: Simplify right side
    111,708.51x = 4,602,808,374.22
  5. Step 5: Solve for x
    x = 4,602,808,374.22/111,708.51
  6. Step 6: Final answer
    x = 41,203.74

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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.