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Finding the Fourth Proportional to 353,125.94, 487,323.41 and 191,991.83

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Solution

The fourth proportional to 353,125.94, 487,323.41 and 191,991.83 is: 264,953.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,125.94 : 487,323.41 = 191,991.83 : x
  2. Step 2: Convert to fraction form
    353,125.94/487,323.41 = 191,991.83/x
  3. Step 3: Cross multiply
    353,125.94x = 487,323.41 × 191,991.83
  4. Step 4: Simplify right side
    353,125.94x = 93,562,109,891.16
  5. Step 5: Solve for x
    x = 93,562,109,891.16/353,125.94
  6. Step 6: Final answer
    x = 264,953.95

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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.