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Finding the Fourth Proportional to 98,755.98, 148,133.97 and 54,359.88

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Solution

The fourth proportional to 98,755.98, 148,133.97 and 54,359.88 is: 81,539.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,755.98 : 148,133.97 = 54,359.88 : x
  2. Step 2: Convert to fraction form
    98,755.98/148,133.97 = 54,359.88/x
  3. Step 3: Cross multiply
    98,755.98x = 148,133.97 × 54,359.88
  4. Step 4: Simplify right side
    98,755.98x = 8,052,544,833.12
  5. Step 5: Solve for x
    x = 8,052,544,833.12/98,755.98
  6. Step 6: Final answer
    x = 81,539.82

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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.