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Finding the Fourth Proportional to 322,516.40, 483,918.60 and 112,305.20

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Solution

The fourth proportional to 322,516.40, 483,918.60 and 112,305.20 is: 168,507.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,516.40 : 483,918.60 = 112,305.20 : x
  2. Step 2: Convert to fraction form
    322,516.40/483,918.60 = 112,305.20/x
  3. Step 3: Cross multiply
    322,516.40x = 483,918.60 × 112,305.20
  4. Step 4: Simplify right side
    322,516.40x = 54,346,575,156.72
  5. Step 5: Solve for x
    x = 54,346,575,156.72/322,516.40
  6. Step 6: Final answer
    x = 168,507.94

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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.