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Finding the Fourth Proportional to 309,372.48, 463,140.12 and 168,704.64

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Solution

The fourth proportional to 309,372.48, 463,140.12 and 168,704.64 is: 252,556.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,372.48 : 463,140.12 = 168,704.64 : x
  2. Step 2: Convert to fraction form
    309,372.48/463,140.12 = 168,704.64/x
  3. Step 3: Cross multiply
    309,372.48x = 463,140.12 × 168,704.64
  4. Step 4: Simplify right side
    309,372.48x = 78,133,887,214.16
  5. Step 5: Solve for x
    x = 78,133,887,214.16/309,372.48
  6. Step 6: Final answer
    x = 252,556.04

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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.