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Finding the Fourth Proportional to 111,702.85, 167,673.65 and 45,186.46

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Solution

The fourth proportional to 111,702.85, 167,673.65 and 45,186.46 is: 67,827.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,702.85 : 167,673.65 = 45,186.46 : x
  2. Step 2: Convert to fraction form
    111,702.85/167,673.65 = 45,186.46/x
  3. Step 3: Cross multiply
    111,702.85x = 167,673.65 × 45,186.46
  4. Step 4: Simplify right side
    111,702.85x = 7,576,578,033.66
  5. Step 5: Solve for x
    x = 7,576,578,033.66/111,702.85
  6. Step 6: Final answer
    x = 67,827.98

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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.