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Finding the Fourth Proportional to 95,507.89, 143,270.94 and 39,351.79

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Solution

The fourth proportional to 95,507.89, 143,270.94 and 39,351.79 is: 59,031.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,507.89 : 143,270.94 = 39,351.79 : x
  2. Step 2: Convert to fraction form
    95,507.89/143,270.94 = 39,351.79/x
  3. Step 3: Cross multiply
    95,507.89x = 143,270.94 × 39,351.79
  4. Step 4: Simplify right side
    95,507.89x = 5,637,967,943.98
  5. Step 5: Solve for x
    x = 5,637,967,943.98/95,507.89
  6. Step 6: Final answer
    x = 59,031.44

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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.