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Finding the Fourth Proportional to 320,796.61, 442,692.71 and 177,548.11

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Solution

The fourth proportional to 320,796.61, 442,692.71 and 177,548.11 is: 245,012.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,796.61 : 442,692.71 = 177,548.11 : x
  2. Step 2: Convert to fraction form
    320,796.61/442,692.71 = 177,548.11/x
  3. Step 3: Cross multiply
    320,796.61x = 442,692.71 × 177,548.11
  4. Step 4: Simplify right side
    320,796.61x = 78,599,252,642.61
  5. Step 5: Solve for x
    x = 78,599,252,642.61/320,796.61
  6. Step 6: Final answer
    x = 245,012.73

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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.