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Finding the Fourth Proportional to 303,388.62, 455,147.73 and 116,398.50

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Solution

The fourth proportional to 303,388.62, 455,147.73 and 116,398.50 is: 174,622.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,388.62 : 455,147.73 = 116,398.50 : x
  2. Step 2: Convert to fraction form
    303,388.62/455,147.73 = 116,398.50/x
  3. Step 3: Cross multiply
    303,388.62x = 455,147.73 × 116,398.50
  4. Step 4: Simplify right side
    303,388.62x = 52,978,513,050.41
  5. Step 5: Solve for x
    x = 52,978,513,050.41/303,388.62
  6. Step 6: Final answer
    x = 174,622.61

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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.