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Finding the Fourth Proportional to 213,563.34, 320,340.96 and 63,804.06

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Solution

The fourth proportional to 213,563.34, 320,340.96 and 63,804.06 is: 95,704.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,563.34 : 320,340.96 = 63,804.06 : x
  2. Step 2: Convert to fraction form
    213,563.34/320,340.96 = 63,804.06/x
  3. Step 3: Cross multiply
    213,563.34x = 320,340.96 × 63,804.06
  4. Step 4: Simplify right side
    213,563.34x = 20,439,053,832.30
  5. Step 5: Solve for x
    x = 20,439,053,832.30/213,563.34
  6. Step 6: Final answer
    x = 95,704.88

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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.