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Finding the Fourth Proportional to 373,295.38, 515,191.36 and 212,174.65

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Solution

The fourth proportional to 373,295.38, 515,191.36 and 212,174.65 is: 292,825.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,295.38 : 515,191.36 = 212,174.65 : x
  2. Step 2: Convert to fraction form
    373,295.38/515,191.36 = 212,174.65/x
  3. Step 3: Cross multiply
    373,295.38x = 515,191.36 × 212,174.65
  4. Step 4: Simplify right side
    373,295.38x = 109,310,544,615.89
  5. Step 5: Solve for x
    x = 109,310,544,615.89/373,295.38
  6. Step 6: Final answer
    x = 292,825.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.