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Finding the Fourth Proportional to 319,183.91, 478,845.89 and 94,561.90

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Solution

The fourth proportional to 319,183.91, 478,845.89 and 94,561.90 is: 141,863.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,183.91 : 478,845.89 = 94,561.90 : x
  2. Step 2: Convert to fraction form
    319,183.91/478,845.89 = 94,561.90/x
  3. Step 3: Cross multiply
    319,183.91x = 478,845.89 × 94,561.90
  4. Step 4: Simplify right side
    319,183.91x = 45,280,577,165.59
  5. Step 5: Solve for x
    x = 45,280,577,165.59/319,183.91
  6. Step 6: Final answer
    x = 141,863.60

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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.