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Finding the Fourth Proportional to 353,626.44, 488,014.86 and 192,492

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Solution

The fourth proportional to 353,626.44, 488,014.86 and 192,492 is: 265,644.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,626.44 : 488,014.86 = 192,492 : x
  2. Step 2: Convert to fraction form
    353,626.44/488,014.86 = 192,492/x
  3. Step 3: Cross multiply
    353,626.44x = 488,014.86 × 192,492
  4. Step 4: Simplify right side
    353,626.44x = 93,938,956,431.12
  5. Step 5: Solve for x
    x = 93,938,956,431.12/353,626.44
  6. Step 6: Final answer
    x = 265,644.61

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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.