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Finding the Fourth Proportional to 213,473.34, 320,228.25 and 63,703.98

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Solution

The fourth proportional to 213,473.34, 320,228.25 and 63,703.98 is: 95,561.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,473.34 : 320,228.25 = 63,703.98 : x
  2. Step 2: Convert to fraction form
    213,473.34/320,228.25 = 63,703.98/x
  3. Step 3: Cross multiply
    213,473.34x = 320,228.25 × 63,703.98
  4. Step 4: Simplify right side
    213,473.34x = 20,399,814,033.44
  5. Step 5: Solve for x
    x = 20,399,814,033.44/213,473.34
  6. Step 6: Final answer
    x = 95,561.41

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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.