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Finding the Fourth Proportional to 188,838.60, 260,604.70 and 103,963.56

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Solution

The fourth proportional to 188,838.60, 260,604.70 and 103,963.56 is: 143,473.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,838.60 : 260,604.70 = 103,963.56 : x
  2. Step 2: Convert to fraction form
    188,838.60/260,604.70 = 103,963.56/x
  3. Step 3: Cross multiply
    188,838.60x = 260,604.70 × 103,963.56
  4. Step 4: Simplify right side
    188,838.60x = 27,093,392,364.73
  5. Step 5: Solve for x
    x = 27,093,392,364.73/188,838.60
  6. Step 6: Final answer
    x = 143,473.80

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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.