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Finding the Fourth Proportional to 188,744.78, 260,478.57 and 108,185.73

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Solution

The fourth proportional to 188,744.78, 260,478.57 and 108,185.73 is: 149,302.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,744.78 : 260,478.57 = 108,185.73 : x
  2. Step 2: Convert to fraction form
    188,744.78/260,478.57 = 108,185.73/x
  3. Step 3: Cross multiply
    188,744.78x = 260,478.57 × 108,185.73
  4. Step 4: Simplify right side
    188,744.78x = 28,180,064,244.81
  5. Step 5: Solve for x
    x = 28,180,064,244.81/188,744.78
  6. Step 6: Final answer
    x = 149,302.48

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1.5x scale

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.