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Finding the Fourth Proportional to 199,920.88, 299,939.52 and 94,594.96

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Solution

The fourth proportional to 199,920.88, 299,939.52 and 94,594.96 is: 141,919.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,920.88 : 299,939.52 = 94,594.96 : x
  2. Step 2: Convert to fraction form
    199,920.88/299,939.52 = 94,594.96/x
  3. Step 3: Cross multiply
    199,920.88x = 299,939.52 × 94,594.96
  4. Step 4: Simplify right side
    199,920.88x = 28,372,766,896.82
  5. Step 5: Solve for x
    x = 28,372,766,896.82/199,920.88
  6. Step 6: Final answer
    x = 141,919.98

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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.