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Finding the Fourth Proportional to 239,889.06, 359,905.50 and 71,415.27

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Solution

The fourth proportional to 239,889.06, 359,905.50 and 71,415.27 is: 107,144.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,889.06 : 359,905.50 = 71,415.27 : x
  2. Step 2: Convert to fraction form
    239,889.06/359,905.50 = 71,415.27/x
  3. Step 3: Cross multiply
    239,889.06x = 359,905.50 × 71,415.27
  4. Step 4: Simplify right side
    239,889.06x = 25,702,748,456.99
  5. Step 5: Solve for x
    x = 25,702,748,456.99/239,889.06
  6. Step 6: Final answer
    x = 107,144.31

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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.