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Finding the Fourth Proportional to 251,224.69, 346,692.81 and 138,047.44

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Solution

The fourth proportional to 251,224.69, 346,692.81 and 138,047.44 is: 190,506.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,224.69 : 346,692.81 = 138,047.44 : x
  2. Step 2: Convert to fraction form
    251,224.69/346,692.81 = 138,047.44/x
  3. Step 3: Cross multiply
    251,224.69x = 346,692.81 × 138,047.44
  4. Step 4: Simplify right side
    251,224.69x = 47,860,054,886.91
  5. Step 5: Solve for x
    x = 47,860,054,886.91/251,224.69
  6. Step 6: Final answer
    x = 190,506.97

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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.