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Finding the Fourth Proportional to 111,508.70, 167,133.45 and 44,915.90

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Solution

The fourth proportional to 111,508.70, 167,133.45 and 44,915.90 is: 67,321.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,508.70 : 167,133.45 = 44,915.90 : x
  2. Step 2: Convert to fraction form
    111,508.70/167,133.45 = 44,915.90/x
  3. Step 3: Cross multiply
    111,508.70x = 167,133.45 × 44,915.90
  4. Step 4: Simplify right side
    111,508.70x = 7,506,949,326.86
  5. Step 5: Solve for x
    x = 7,506,949,326.86/111,508.70
  6. Step 6: Final answer
    x = 67,321.65

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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.