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Finding the Fourth Proportional to 122,636.87, 183,843.98 and 109,350.84

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Solution

The fourth proportional to 122,636.87, 183,843.98 and 109,350.84 is: 163,927.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,636.87 : 183,843.98 = 109,350.84 : x
  2. Step 2: Convert to fraction form
    122,636.87/183,843.98 = 109,350.84/x
  3. Step 3: Cross multiply
    122,636.87x = 183,843.98 × 109,350.84
  4. Step 4: Simplify right side
    122,636.87x = 20,103,494,194.67
  5. Step 5: Solve for x
    x = 20,103,494,194.67/122,636.87
  6. Step 6: Final answer
    x = 163,927.00

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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.