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Finding the Fourth Proportional to 105,841.52, 158,786.49 and 45,880.03

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Solution

The fourth proportional to 105,841.52, 158,786.49 and 45,880.03 is: 68,830.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,841.52 : 158,786.49 = 45,880.03 : x
  2. Step 2: Convert to fraction form
    105,841.52/158,786.49 = 45,880.03/x
  3. Step 3: Cross multiply
    105,841.52x = 158,786.49 × 45,880.03
  4. Step 4: Simplify right side
    105,841.52x = 7,285,128,924.79
  5. Step 5: Solve for x
    x = 7,285,128,924.79/105,841.52
  6. Step 6: Final answer
    x = 68,830.54

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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.