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Finding the Fourth Proportional to 192,776.45, 289,225.17 and 115,927.89

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Solution

The fourth proportional to 192,776.45, 289,225.17 and 115,927.89 is: 173,928.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,776.45 : 289,225.17 = 115,927.89 : x
  2. Step 2: Convert to fraction form
    192,776.45/289,225.17 = 115,927.89/x
  3. Step 3: Cross multiply
    192,776.45x = 289,225.17 × 115,927.89
  4. Step 4: Simplify right side
    192,776.45x = 33,529,263,113.35
  5. Step 5: Solve for x
    x = 33,529,263,113.35/192,776.45
  6. Step 6: Final answer
    x = 173,928.21

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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.