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Finding the Fourth Proportional to 353,874.76, 488,352.74 and 192,729.69

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Solution

The fourth proportional to 353,874.76, 488,352.74 and 192,729.69 is: 265,970.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,874.76 : 488,352.74 = 192,729.69 : x
  2. Step 2: Convert to fraction form
    353,874.76/488,352.74 = 192,729.69/x
  3. Step 3: Cross multiply
    353,874.76x = 488,352.74 × 192,729.69
  4. Step 4: Simplify right side
    353,874.76x = 94,120,072,190.85
  5. Step 5: Solve for x
    x = 94,120,072,190.85/353,874.76
  6. Step 6: Final answer
    x = 265,970.01

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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.