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Finding the Fourth Proportional to 250,478.54, 375,712.62 and 60,939.90

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Solution

The fourth proportional to 250,478.54, 375,712.62 and 60,939.90 is: 91,408.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,478.54 : 375,712.62 = 60,939.90 : x
  2. Step 2: Convert to fraction form
    250,478.54/375,712.62 = 60,939.90/x
  3. Step 3: Cross multiply
    250,478.54x = 375,712.62 × 60,939.90
  4. Step 4: Simplify right side
    250,478.54x = 22,895,889,491.54
  5. Step 5: Solve for x
    x = 22,895,889,491.54/250,478.54
  6. Step 6: Final answer
    x = 91,408.59

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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.