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Finding the Fourth Proportional to 353,994.45, 488,509.92 and 192,849.63

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Solution

The fourth proportional to 353,994.45, 488,509.92 and 192,849.63 is: 266,131.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,994.45 : 488,509.92 = 192,849.63 : x
  2. Step 2: Convert to fraction form
    353,994.45/488,509.92 = 192,849.63/x
  3. Step 3: Cross multiply
    353,994.45x = 488,509.92 × 192,849.63
  4. Step 4: Simplify right side
    353,994.45x = 94,208,957,323.33
  5. Step 5: Solve for x
    x = 94,208,957,323.33/353,994.45
  6. Step 6: Final answer
    x = 266,131.17

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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.