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Finding the Fourth Proportional to 213,369.62, 320,057.06 and 63,614.79

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Solution

The fourth proportional to 213,369.62, 320,057.06 and 63,614.79 is: 95,422.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,369.62 : 320,057.06 = 63,614.79 : x
  2. Step 2: Convert to fraction form
    213,369.62/320,057.06 = 63,614.79/x
  3. Step 3: Cross multiply
    213,369.62x = 320,057.06 × 63,614.79
  4. Step 4: Simplify right side
    213,369.62x = 20,360,362,341.84
  5. Step 5: Solve for x
    x = 20,360,362,341.84/213,369.62
  6. Step 6: Final answer
    x = 95,422.97

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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.