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Finding the Fourth Proportional to 373,141.86, 514,935.94 and 211,997.18

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Solution

The fourth proportional to 373,141.86, 514,935.94 and 211,997.18 is: 292,556.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,141.86 : 514,935.94 = 211,997.18 : x
  2. Step 2: Convert to fraction form
    373,141.86/514,935.94 = 211,997.18/x
  3. Step 3: Cross multiply
    373,141.86x = 514,935.94 × 211,997.18
  4. Step 4: Simplify right side
    373,141.86x = 109,164,967,160.65
  5. Step 5: Solve for x
    x = 109,164,967,160.65/373,141.86
  6. Step 6: Final answer
    x = 292,556.21

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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.