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Finding the Fourth Proportional to 368,299.98, 508,218.03 and 207,151.56

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Solution

The fourth proportional to 368,299.98, 508,218.03 and 207,151.56 is: 285,848.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,299.98 : 508,218.03 = 207,151.56 : x
  2. Step 2: Convert to fraction form
    368,299.98/508,218.03 = 207,151.56/x
  3. Step 3: Cross multiply
    368,299.98x = 508,218.03 × 207,151.56
  4. Step 4: Simplify right side
    368,299.98x = 105,278,157,734.63
  5. Step 5: Solve for x
    x = 105,278,157,734.63/368,299.98
  6. Step 6: Final answer
    x = 285,848.94

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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.