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Finding the Fourth Proportional to 329,608.98, 494,432.78 and 127,206.15

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Solution

The fourth proportional to 329,608.98, 494,432.78 and 127,206.15 is: 190,816.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,608.98 : 494,432.78 = 127,206.15 : x
  2. Step 2: Convert to fraction form
    329,608.98/494,432.78 = 127,206.15/x
  3. Step 3: Cross multiply
    329,608.98x = 494,432.78 × 127,206.15
  4. Step 4: Simplify right side
    329,608.98x = 62,894,887,887.44
  5. Step 5: Solve for x
    x = 62,894,887,887.44/329,608.98
  6. Step 6: Final answer
    x = 190,816.67

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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.