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Finding the Fourth Proportional to 111,671.52, 167,441.68 and 45,113.76

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Solution

The fourth proportional to 111,671.52, 167,441.68 and 45,113.76 is: 67,644.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,671.52 : 167,441.68 = 45,113.76 : x
  2. Step 2: Convert to fraction form
    111,671.52/167,441.68 = 45,113.76/x
  3. Step 3: Cross multiply
    111,671.52x = 167,441.68 × 45,113.76
  4. Step 4: Simplify right side
    111,671.52x = 7,553,923,765.52
  5. Step 5: Solve for x
    x = 7,553,923,765.52/111,671.52
  6. Step 6: Final answer
    x = 67,644.14

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1.5x scale

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.