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Finding the Fourth Proportional to 98,089.86, 135,404.69 and 66,301.82

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Solution

The fourth proportional to 98,089.86, 135,404.69 and 66,301.82 is: 91,524.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,089.86 : 135,404.69 = 66,301.82 : x
  2. Step 2: Convert to fraction form
    98,089.86/135,404.69 = 66,301.82/x
  3. Step 3: Cross multiply
    98,089.86x = 135,404.69 × 66,301.82
  4. Step 4: Simplify right side
    98,089.86x = 8,977,576,375.00
  5. Step 5: Solve for x
    x = 8,977,576,375.00/98,089.86
  6. Step 6: Final answer
    x = 91,524.00

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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.