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Finding the Fourth Proportional to 353,539.76, 487,879.80 and 194,563.76

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Solution

The fourth proportional to 353,539.76, 487,879.80 and 194,563.76 is: 268,495.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,539.76 : 487,879.80 = 194,563.76 : x
  2. Step 2: Convert to fraction form
    353,539.76/487,879.80 = 194,563.76/x
  3. Step 3: Cross multiply
    353,539.76x = 487,879.80 × 194,563.76
  4. Step 4: Simplify right side
    353,539.76x = 94,923,728,316.05
  5. Step 5: Solve for x
    x = 94,923,728,316.05/353,539.76
  6. Step 6: Final answer
    x = 268,495.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.