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Finding the Fourth Proportional to 111,894.40, 167,842.02 and 45,335.80

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Solution

The fourth proportional to 111,894.40, 167,842.02 and 45,335.80 is: 68,003.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,894.40 : 167,842.02 = 45,335.80 : x
  2. Step 2: Convert to fraction form
    111,894.40/167,842.02 = 45,335.80/x
  3. Step 3: Cross multiply
    111,894.40x = 167,842.02 × 45,335.80
  4. Step 4: Simplify right side
    111,894.40x = 7,609,252,250.32
  5. Step 5: Solve for x
    x = 7,609,252,250.32/111,894.40
  6. Step 6: Final answer
    x = 68,003.87

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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.