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Finding the Fourth Proportional to 108,568.54, 162,820 and 64,183.38

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Solution

The fourth proportional to 108,568.54, 162,820 and 64,183.38 is: 96,255.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,568.54 : 162,820 = 64,183.38 : x
  2. Step 2: Convert to fraction form
    108,568.54/162,820 = 64,183.38/x
  3. Step 3: Cross multiply
    108,568.54x = 162,820 × 64,183.38
  4. Step 4: Simplify right side
    108,568.54x = 10,450,337,931.60
  5. Step 5: Solve for x
    x = 10,450,337,931.60/108,568.54
  6. Step 6: Final answer
    x = 96,255.67

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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.