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Finding the Fourth Proportional to 111,973.11, 167,958.61 and 45,397.41

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Solution

The fourth proportional to 111,973.11, 167,958.61 and 45,397.41 is: 68,095.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,973.11 : 167,958.61 = 45,397.41 : x
  2. Step 2: Convert to fraction form
    111,973.11/167,958.61 = 45,397.41/x
  3. Step 3: Cross multiply
    111,973.11x = 167,958.61 × 45,397.41
  4. Step 4: Simplify right side
    111,973.11x = 7,624,885,784.75
  5. Step 5: Solve for x
    x = 7,624,885,784.75/111,973.11
  6. Step 6: Final answer
    x = 68,095.69

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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.