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Finding the Fourth Proportional to 65,168.70, 97,871.85 and 57,003.90

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Solution

The fourth proportional to 65,168.70, 97,871.85 and 57,003.90 is: 85,609.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,168.70 : 97,871.85 = 57,003.90 : x
  2. Step 2: Convert to fraction form
    65,168.70/97,871.85 = 57,003.90/x
  3. Step 3: Cross multiply
    65,168.70x = 97,871.85 × 57,003.90
  4. Step 4: Simplify right side
    65,168.70x = 5,579,077,150.22
  5. Step 5: Solve for x
    x = 5,579,077,150.22/65,168.70
  6. Step 6: Final answer
    x = 85,609.77

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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.