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Finding the Fourth Proportional to 368,212.61, 508,127.91 and 207,067.77

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Solution

The fourth proportional to 368,212.61, 508,127.91 and 207,067.77 is: 285,750.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,212.61 : 508,127.91 = 207,067.77 : x
  2. Step 2: Convert to fraction form
    368,212.61/508,127.91 = 207,067.77/x
  3. Step 3: Cross multiply
    368,212.61x = 508,127.91 × 207,067.77
  4. Step 4: Simplify right side
    368,212.61x = 105,216,913,198.46
  5. Step 5: Solve for x
    x = 105,216,913,198.46/368,212.61
  6. Step 6: Final answer
    x = 285,750.43

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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.