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Finding the Fourth Proportional to 122,306.58, 168,784.49 and 67,859.77

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Solution

The fourth proportional to 122,306.58, 168,784.49 and 67,859.77 is: 93,647.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,306.58 : 168,784.49 = 67,859.77 : x
  2. Step 2: Convert to fraction form
    122,306.58/168,784.49 = 67,859.77/x
  3. Step 3: Cross multiply
    122,306.58x = 168,784.49 × 67,859.77
  4. Step 4: Simplify right side
    122,306.58x = 11,453,676,670.97
  5. Step 5: Solve for x
    x = 11,453,676,670.97/122,306.58
  6. Step 6: Final answer
    x = 93,647.27

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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.