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Finding the Fourth Proportional to 353,749.86, 488,162.05 and 192,601.21

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Solution

The fourth proportional to 353,749.86, 488,162.05 and 192,601.21 is: 265,782.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,749.86 : 488,162.05 = 192,601.21 : x
  2. Step 2: Convert to fraction form
    353,749.86/488,162.05 = 192,601.21/x
  3. Step 3: Cross multiply
    353,749.86x = 488,162.05 × 192,601.21
  4. Step 4: Simplify right side
    353,749.86x = 94,020,601,506.08
  5. Step 5: Solve for x
    x = 94,020,601,506.08/353,749.86
  6. Step 6: Final answer
    x = 265,782.72

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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.