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Finding the Fourth Proportional to 324,182.70, 485,865.01 and 164,298.81

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Solution

The fourth proportional to 324,182.70, 485,865.01 and 164,298.81 is: 246,240.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,182.70 : 485,865.01 = 164,298.81 : x
  2. Step 2: Convert to fraction form
    324,182.70/485,865.01 = 164,298.81/x
  3. Step 3: Cross multiply
    324,182.70x = 485,865.01 × 164,298.81
  4. Step 4: Simplify right side
    324,182.70x = 79,827,042,963.64
  5. Step 5: Solve for x
    x = 79,827,042,963.64/324,182.70
  6. Step 6: Final answer
    x = 246,240.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.