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Finding the Fourth Proportional to 353,843.02, 488,314.74 and 192,704.86

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Solution

The fourth proportional to 353,843.02, 488,314.74 and 192,704.86 is: 265,938.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,843.02 : 488,314.74 = 192,704.86 : x
  2. Step 2: Convert to fraction form
    353,843.02/488,314.74 = 192,704.86/x
  3. Step 3: Cross multiply
    353,843.02x = 488,314.74 × 192,704.86
  4. Step 4: Simplify right side
    353,843.02x = 94,100,623,607.64
  5. Step 5: Solve for x
    x = 94,100,623,607.64/353,843.02
  6. Step 6: Final answer
    x = 265,938.90

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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.