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Finding the Fourth Proportional to 111,747.83, 167,605.34 and 45,186.48

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Solution

The fourth proportional to 111,747.83, 167,605.34 and 45,186.48 is: 67,773.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,747.83 : 167,605.34 = 45,186.48 : x
  2. Step 2: Convert to fraction form
    111,747.83/167,605.34 = 45,186.48/x
  3. Step 3: Cross multiply
    111,747.83x = 167,605.34 × 45,186.48
  4. Step 4: Simplify right side
    111,747.83x = 7,573,495,117.87
  5. Step 5: Solve for x
    x = 7,573,495,117.87/111,747.83
  6. Step 6: Final answer
    x = 67,773.09

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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.