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Finding the Fourth Proportional to 342,396.70, 513,174.40 and 192,321.52

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Solution

The fourth proportional to 342,396.70, 513,174.40 and 192,321.52 is: 288,246.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,396.70 : 513,174.40 = 192,321.52 : x
  2. Step 2: Convert to fraction form
    342,396.70/513,174.40 = 192,321.52/x
  3. Step 3: Cross multiply
    342,396.70x = 513,174.40 × 192,321.52
  4. Step 4: Simplify right side
    342,396.70x = 98,694,478,869.35
  5. Step 5: Solve for x
    x = 98,694,478,869.35/342,396.70
  6. Step 6: Final answer
    x = 288,246.00

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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.