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Finding the Fourth Proportional to 373,112.89, 514,871.15 and 209,794.57

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Solution

The fourth proportional to 373,112.89, 514,871.15 and 209,794.57 is: 289,502.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,112.89 : 514,871.15 = 209,794.57 : x
  2. Step 2: Convert to fraction form
    373,112.89/514,871.15 = 209,794.57/x
  3. Step 3: Cross multiply
    373,112.89x = 514,871.15 × 209,794.57
  4. Step 4: Simplify right side
    373,112.89x = 108,017,170,756.96
  5. Step 5: Solve for x
    x = 108,017,170,756.96/373,112.89
  6. Step 6: Final answer
    x = 289,502.65

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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.