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Finding the Fourth Proportional to 122,208.52, 168,647.52 and 68,493.52

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Solution

The fourth proportional to 122,208.52, 168,647.52 and 68,493.52 is: 94,520.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,208.52 : 168,647.52 = 68,493.52 : x
  2. Step 2: Convert to fraction form
    122,208.52/168,647.52 = 68,493.52/x
  3. Step 3: Cross multiply
    122,208.52x = 168,647.52 × 68,493.52
  4. Step 4: Simplify right side
    122,208.52x = 11,551,262,284.07
  5. Step 5: Solve for x
    x = 11,551,262,284.07/122,208.52
  6. Step 6: Final answer
    x = 94,520.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.