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Finding the Fourth Proportional to 239,647.72, 359,548.38 and 114,997.48

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Solution

The fourth proportional to 239,647.72, 359,548.38 and 114,997.48 is: 172,533.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,647.72 : 359,548.38 = 114,997.48 : x
  2. Step 2: Convert to fraction form
    239,647.72/359,548.38 = 114,997.48/x
  3. Step 3: Cross multiply
    239,647.72x = 359,548.38 × 114,997.48
  4. Step 4: Simplify right side
    239,647.72x = 41,347,157,638.08
  5. Step 5: Solve for x
    x = 41,347,157,638.08/239,647.72
  6. Step 6: Final answer
    x = 172,533.07

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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.