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Finding the Fourth Proportional to 324,146.54, 485,967.99 and 210,053.33

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Solution

The fourth proportional to 324,146.54, 485,967.99 and 210,053.33 is: 314,916.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,146.54 : 485,967.99 = 210,053.33 : x
  2. Step 2: Convert to fraction form
    324,146.54/485,967.99 = 210,053.33/x
  3. Step 3: Cross multiply
    324,146.54x = 485,967.99 × 210,053.33
  4. Step 4: Simplify right side
    324,146.54x = 102,079,194,572.91
  5. Step 5: Solve for x
    x = 102,079,194,572.91/324,146.54
  6. Step 6: Final answer
    x = 314,916.81

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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.