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Finding the Fourth Proportional to 275,651.61, 380,440.40 and 168,283.98

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Solution

The fourth proportional to 275,651.61, 380,440.40 and 168,283.98 is: 232,257.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,651.61 : 380,440.40 = 168,283.98 : x
  2. Step 2: Convert to fraction form
    275,651.61/380,440.40 = 168,283.98/x
  3. Step 3: Cross multiply
    275,651.61x = 380,440.40 × 168,283.98
  4. Step 4: Simplify right side
    275,651.61x = 64,022,023,823.37
  5. Step 5: Solve for x
    x = 64,022,023,823.37/275,651.61
  6. Step 6: Final answer
    x = 232,257.03

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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.