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Finding the Fourth Proportional to 188,793.39, 260,529.44 and 103,908.63

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Solution

The fourth proportional to 188,793.39, 260,529.44 and 103,908.63 is: 143,390.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,793.39 : 260,529.44 = 103,908.63 : x
  2. Step 2: Convert to fraction form
    188,793.39/260,529.44 = 103,908.63/x
  3. Step 3: Cross multiply
    188,793.39x = 260,529.44 × 103,908.63
  4. Step 4: Simplify right side
    188,793.39x = 27,071,256,665.52
  5. Step 5: Solve for x
    x = 27,071,256,665.52/188,793.39
  6. Step 6: Final answer
    x = 143,390.91

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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.