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Finding the Fourth Proportional to 322,143.54, 483,002.03 and 153,689.87

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Solution

The fourth proportional to 322,143.54, 483,002.03 and 153,689.87 is: 230,433.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,143.54 : 483,002.03 = 153,689.87 : x
  2. Step 2: Convert to fraction form
    322,143.54/483,002.03 = 153,689.87/x
  3. Step 3: Cross multiply
    322,143.54x = 483,002.03 × 153,689.87
  4. Step 4: Simplify right side
    322,143.54x = 74,232,516,785.43
  5. Step 5: Solve for x
    x = 74,232,516,785.43/322,143.54
  6. Step 6: Final answer
    x = 230,433.04

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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.