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Finding the Fourth Proportional to 273,362.72, 409,997.34 and 73,636.40

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Solution

The fourth proportional to 273,362.72, 409,997.34 and 73,636.40 is: 110,442.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,362.72 : 409,997.34 = 73,636.40 : x
  2. Step 2: Convert to fraction form
    273,362.72/409,997.34 = 73,636.40/x
  3. Step 3: Cross multiply
    273,362.72x = 409,997.34 × 73,636.40
  4. Step 4: Simplify right side
    273,362.72x = 30,190,728,127.18
  5. Step 5: Solve for x
    x = 30,190,728,127.18/273,362.72
  6. Step 6: Final answer
    x = 110,442.01

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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.