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Finding the Fourth Proportional to 213,553.72, 320,360.01 and 73,294.12

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Solution

The fourth proportional to 213,553.72, 320,360.01 and 73,294.12 is: 109,951.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,553.72 : 320,360.01 = 73,294.12 : x
  2. Step 2: Convert to fraction form
    213,553.72/320,360.01 = 73,294.12/x
  3. Step 3: Cross multiply
    213,553.72x = 320,360.01 × 73,294.12
  4. Step 4: Simplify right side
    213,553.72x = 23,480,505,016.14
  5. Step 5: Solve for x
    x = 23,480,505,016.14/213,553.72
  6. Step 6: Final answer
    x = 109,951.28

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1.5x scale

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.