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Finding the Fourth Proportional to 188,558.23, 260,203.71 and 103,674.64

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Solution

The fourth proportional to 188,558.23, 260,203.71 and 103,674.64 is: 143,067.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,558.23 : 260,203.71 = 103,674.64 : x
  2. Step 2: Convert to fraction form
    188,558.23/260,203.71 = 103,674.64/x
  3. Step 3: Cross multiply
    188,558.23x = 260,203.71 × 103,674.64
  4. Step 4: Simplify right side
    188,558.23x = 26,976,525,960.91
  5. Step 5: Solve for x
    x = 26,976,525,960.91/188,558.23
  6. Step 6: Final answer
    x = 143,067.35

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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.