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Finding the Fourth Proportional to 319,161.89, 478,741.96 and 94,539.84

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Solution

The fourth proportional to 319,161.89, 478,741.96 and 94,539.84 is: 141,809.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,161.89 : 478,741.96 = 94,539.84 : x
  2. Step 2: Convert to fraction form
    319,161.89/478,741.96 = 94,539.84/x
  3. Step 3: Cross multiply
    319,161.89x = 478,741.96 × 94,539.84
  4. Step 4: Simplify right side
    319,161.89x = 45,260,188,299.69
  5. Step 5: Solve for x
    x = 45,260,188,299.69/319,161.89
  6. Step 6: Final answer
    x = 141,809.50

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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.