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Finding the Fourth Proportional to 492,170.64, 738,317.52 and 192,612.52

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Solution

The fourth proportional to 492,170.64, 738,317.52 and 192,612.52 is: 288,942.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,170.64 : 738,317.52 = 192,612.52 : x
  2. Step 2: Convert to fraction form
    492,170.64/738,317.52 = 192,612.52/x
  3. Step 3: Cross multiply
    492,170.64x = 738,317.52 × 192,612.52
  4. Step 4: Simplify right side
    492,170.64x = 142,209,198,087.35
  5. Step 5: Solve for x
    x = 142,209,198,087.35/492,170.64
  6. Step 6: Final answer
    x = 288,942.87

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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.