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Finding the Fourth Proportional to 326,574.37, 450,721.83 and 199,323.91

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Solution

The fourth proportional to 326,574.37, 450,721.83 and 199,323.91 is: 275,097.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,574.37 : 450,721.83 = 199,323.91 : x
  2. Step 2: Convert to fraction form
    326,574.37/450,721.83 = 199,323.91/x
  3. Step 3: Cross multiply
    326,574.37x = 450,721.83 × 199,323.91
  4. Step 4: Simplify right side
    326,574.37x = 89,839,637,477.96
  5. Step 5: Solve for x
    x = 89,839,637,477.96/326,574.37
  6. Step 6: Final answer
    x = 275,097.02

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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.