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Finding the Fourth Proportional to 193,546.95, 290,207.43 and 75,079.86

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Solution

The fourth proportional to 193,546.95, 290,207.43 and 75,079.86 is: 112,575.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,546.95 : 290,207.43 = 75,079.86 : x
  2. Step 2: Convert to fraction form
    193,546.95/290,207.43 = 75,079.86/x
  3. Step 3: Cross multiply
    193,546.95x = 290,207.43 × 75,079.86
  4. Step 4: Simplify right side
    193,546.95x = 21,788,733,215.36
  5. Step 5: Solve for x
    x = 21,788,733,215.36/193,546.95
  6. Step 6: Final answer
    x = 112,575.96

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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.