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Finding the Fourth Proportional to 198,549.66, 273,999.99 and 107,905.98

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Solution

The fourth proportional to 198,549.66, 273,999.99 and 107,905.98 is: 148,911.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,549.66 : 273,999.99 = 107,905.98 : x
  2. Step 2: Convert to fraction form
    198,549.66/273,999.99 = 107,905.98/x
  3. Step 3: Cross multiply
    198,549.66x = 273,999.99 × 107,905.98
  4. Step 4: Simplify right side
    198,549.66x = 29,566,237,440.94
  5. Step 5: Solve for x
    x = 29,566,237,440.94/198,549.66
  6. Step 6: Final answer
    x = 148,911.05

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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.