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Finding the Fourth Proportional to 188,747.01, 260,474.40 and 103,863.87

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Solution

The fourth proportional to 188,747.01, 260,474.40 and 103,863.87 is: 143,334.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,747.01 : 260,474.40 = 103,863.87 : x
  2. Step 2: Convert to fraction form
    188,747.01/260,474.40 = 103,863.87/x
  3. Step 3: Cross multiply
    188,747.01x = 260,474.40 × 103,863.87
  4. Step 4: Simplify right side
    188,747.01x = 27,053,879,219.93
  5. Step 5: Solve for x
    x = 27,053,879,219.93/188,747.01
  6. Step 6: Final answer
    x = 143,334.08

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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.