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Finding the Fourth Proportional to 65,409.66, 98,143.38 and 50,745.96

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Solution

The fourth proportional to 65,409.66, 98,143.38 and 50,745.96 is: 76,141.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,409.66 : 98,143.38 = 50,745.96 : x
  2. Step 2: Convert to fraction form
    65,409.66/98,143.38 = 50,745.96/x
  3. Step 3: Cross multiply
    65,409.66x = 98,143.38 × 50,745.96
  4. Step 4: Simplify right side
    65,409.66x = 4,980,380,035.74
  5. Step 5: Solve for x
    x = 4,980,380,035.74/65,409.66
  6. Step 6: Final answer
    x = 76,141.35

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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.