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Finding the Fourth Proportional to 368,222.49, 508,087.80 and 207,067.95

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Solution

The fourth proportional to 368,222.49, 508,087.80 and 207,067.95 is: 285,720.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,222.49 : 508,087.80 = 207,067.95 : x
  2. Step 2: Convert to fraction form
    368,222.49/508,087.80 = 207,067.95/x
  3. Step 3: Cross multiply
    368,222.49x = 508,087.80 × 207,067.95
  4. Step 4: Simplify right side
    368,222.49x = 105,208,699,166.01
  5. Step 5: Solve for x
    x = 105,208,699,166.01/368,222.49
  6. Step 6: Final answer
    x = 285,720.46

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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.