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Finding the Fourth Proportional to 320,058.72, 480,081.90 and 95,571.26

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Solution

The fourth proportional to 320,058.72, 480,081.90 and 95,571.26 is: 143,355.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,058.72 : 480,081.90 = 95,571.26 : x
  2. Step 2: Convert to fraction form
    320,058.72/480,081.90 = 95,571.26/x
  3. Step 3: Cross multiply
    320,058.72x = 480,081.90 × 95,571.26
  4. Step 4: Simplify right side
    320,058.72x = 45,882,032,086.19
  5. Step 5: Solve for x
    x = 45,882,032,086.19/320,058.72
  6. Step 6: Final answer
    x = 143,355.04

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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.