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Finding the Fourth Proportional to 65,170.55, 89,944.98 and 41,299.40

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Solution

The fourth proportional to 65,170.55, 89,944.98 and 41,299.40 is: 56,999.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,170.55 : 89,944.98 = 41,299.40 : x
  2. Step 2: Convert to fraction form
    65,170.55/89,944.98 = 41,299.40/x
  3. Step 3: Cross multiply
    65,170.55x = 89,944.98 × 41,299.40
  4. Step 4: Simplify right side
    65,170.55x = 3,714,673,777.00
  5. Step 5: Solve for x
    x = 3,714,673,777.00/65,170.55
  6. Step 6: Final answer
    x = 56,999.27

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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.