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Finding the Fourth Proportional to 355,224.80, 532,837.20 and 214,911.20

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Solution

The fourth proportional to 355,224.80, 532,837.20 and 214,911.20 is: 322,366.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,224.80 : 532,837.20 = 214,911.20 : x
  2. Step 2: Convert to fraction form
    355,224.80/532,837.20 = 214,911.20/x
  3. Step 3: Cross multiply
    355,224.80x = 532,837.20 × 214,911.20
  4. Step 4: Simplify right side
    355,224.80x = 114,512,682,056.64
  5. Step 5: Solve for x
    x = 114,512,682,056.64/355,224.80
  6. Step 6: Final answer
    x = 322,366.80

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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.