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Finding the Fourth Proportional to 341,708.13, 512,603.24 and 142,163.55

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Solution

The fourth proportional to 341,708.13, 512,603.24 and 142,163.55 is: 213,262.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,708.13 : 512,603.24 = 142,163.55 : x
  2. Step 2: Convert to fraction form
    341,708.13/512,603.24 = 142,163.55/x
  3. Step 3: Cross multiply
    341,708.13x = 512,603.24 × 142,163.55
  4. Step 4: Simplify right side
    341,708.13x = 72,873,496,339.90
  5. Step 5: Solve for x
    x = 72,873,496,339.90/341,708.13
  6. Step 6: Final answer
    x = 213,262.40

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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.