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Finding the Fourth Proportional to 65,900.96, 98,855.28 and 34,745.12

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Solution

The fourth proportional to 65,900.96, 98,855.28 and 34,745.12 is: 52,119.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,900.96 : 98,855.28 = 34,745.12 : x
  2. Step 2: Convert to fraction form
    65,900.96/98,855.28 = 34,745.12/x
  3. Step 3: Cross multiply
    65,900.96x = 98,855.28 × 34,745.12
  4. Step 4: Simplify right side
    65,900.96x = 3,434,738,566.23
  5. Step 5: Solve for x
    x = 3,434,738,566.23/65,900.96
  6. Step 6: Final answer
    x = 52,119.70

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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.