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Finding the Fourth Proportional to 188,452.54, 260,069.43 and 103,571.84

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Solution

The fourth proportional to 188,452.54, 260,069.43 and 103,571.84 is: 142,931.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,452.54 : 260,069.43 = 103,571.84 : x
  2. Step 2: Convert to fraction form
    188,452.54/260,069.43 = 103,571.84/x
  3. Step 3: Cross multiply
    188,452.54x = 260,069.43 × 103,571.84
  4. Step 4: Simplify right side
    188,452.54x = 26,935,869,392.85
  5. Step 5: Solve for x
    x = 26,935,869,392.85/188,452.54
  6. Step 6: Final answer
    x = 142,931.85

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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.