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Finding the Fourth Proportional to 420,099.58, 629,750.82 and 167,535.70

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Solution

The fourth proportional to 420,099.58, 629,750.82 and 167,535.70 is: 251,144.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,099.58 : 629,750.82 = 167,535.70 : x
  2. Step 2: Convert to fraction form
    420,099.58/629,750.82 = 167,535.70/x
  3. Step 3: Cross multiply
    420,099.58x = 629,750.82 × 167,535.70
  4. Step 4: Simplify right side
    420,099.58x = 105,505,744,454.27
  5. Step 5: Solve for x
    x = 105,505,744,454.27/420,099.58
  6. Step 6: Final answer
    x = 251,144.61

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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.