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Finding the Fourth Proportional to 373,889.25, 560,915.89 and 121,194.77

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Solution

The fourth proportional to 373,889.25, 560,915.89 and 121,194.77 is: 181,818.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,889.25 : 560,915.89 = 121,194.77 : x
  2. Step 2: Convert to fraction form
    373,889.25/560,915.89 = 121,194.77/x
  3. Step 3: Cross multiply
    373,889.25x = 560,915.89 × 121,194.77
  4. Step 4: Simplify right side
    373,889.25x = 67,980,069,170.33
  5. Step 5: Solve for x
    x = 67,980,069,170.33/373,889.25
  6. Step 6: Final answer
    x = 181,818.73

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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.