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Finding the Fourth Proportional to 258,700.92, 388,252.50 and 118,467.48

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Solution

The fourth proportional to 258,700.92, 388,252.50 and 118,467.48 is: 177,793.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,700.92 : 388,252.50 = 118,467.48 : x
  2. Step 2: Convert to fraction form
    258,700.92/388,252.50 = 118,467.48/x
  3. Step 3: Cross multiply
    258,700.92x = 388,252.50 × 118,467.48
  4. Step 4: Simplify right side
    258,700.92x = 45,995,295,278.70
  5. Step 5: Solve for x
    x = 45,995,295,278.70/258,700.92
  6. Step 6: Final answer
    x = 177,793.32

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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.