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Finding the Fourth Proportional to 188,591.34, 260,378.91 and 117,076.44

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Solution

The fourth proportional to 188,591.34, 260,378.91 and 117,076.44 is: 161,641.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,591.34 : 260,378.91 = 117,076.44 : x
  2. Step 2: Convert to fraction form
    188,591.34/260,378.91 = 117,076.44/x
  3. Step 3: Cross multiply
    188,591.34x = 260,378.91 × 117,076.44
  4. Step 4: Simplify right side
    188,591.34x = 30,484,235,833.88
  5. Step 5: Solve for x
    x = 30,484,235,833.88/188,591.34
  6. Step 6: Final answer
    x = 161,641.76

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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.