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Finding the Fourth Proportional to 98,728.68, 147,958.80 and 41,755.22

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Solution

The fourth proportional to 98,728.68, 147,958.80 and 41,755.22 is: 62,576.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,728.68 : 147,958.80 = 41,755.22 : x
  2. Step 2: Convert to fraction form
    98,728.68/147,958.80 = 41,755.22/x
  3. Step 3: Cross multiply
    98,728.68x = 147,958.80 × 41,755.22
  4. Step 4: Simplify right side
    98,728.68x = 6,178,051,505.14
  5. Step 5: Solve for x
    x = 6,178,051,505.14/98,728.68
  6. Step 6: Final answer
    x = 62,576.06

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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.