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Finding the Fourth Proportional to 253,058.65, 379,588.70 and 73,158.73

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Solution

The fourth proportional to 253,058.65, 379,588.70 and 73,158.73 is: 109,738.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,058.65 : 379,588.70 = 73,158.73 : x
  2. Step 2: Convert to fraction form
    253,058.65/379,588.70 = 73,158.73/x
  3. Step 3: Cross multiply
    253,058.65x = 379,588.70 × 73,158.73
  4. Step 4: Simplify right side
    253,058.65x = 27,770,225,316.41
  5. Step 5: Solve for x
    x = 27,770,225,316.41/253,058.65
  6. Step 6: Final answer
    x = 109,738.30

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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.