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Finding the Fourth Proportional to 188,376.44, 282,520.92 and 70,103.48

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Solution

The fourth proportional to 188,376.44, 282,520.92 and 70,103.48 is: 105,138.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,376.44 : 282,520.92 = 70,103.48 : x
  2. Step 2: Convert to fraction form
    188,376.44/282,520.92 = 70,103.48/x
  3. Step 3: Cross multiply
    188,376.44x = 282,520.92 × 70,103.48
  4. Step 4: Simplify right side
    188,376.44x = 19,805,699,664.80
  5. Step 5: Solve for x
    x = 19,805,699,664.80/188,376.44
  6. Step 6: Final answer
    x = 105,138.94

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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.