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Finding the Fourth Proportional to 118,152.87, 177,157.91 and 47,086.44

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Solution

The fourth proportional to 118,152.87, 177,157.91 and 47,086.44 is: 70,601.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,152.87 : 177,157.91 = 47,086.44 : x
  2. Step 2: Convert to fraction form
    118,152.87/177,157.91 = 47,086.44/x
  3. Step 3: Cross multiply
    118,152.87x = 177,157.91 × 47,086.44
  4. Step 4: Simplify right side
    118,152.87x = 8,341,735,064.31
  5. Step 5: Solve for x
    x = 8,341,735,064.31/118,152.87
  6. Step 6: Final answer
    x = 70,601.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.