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Finding the Fourth Proportional to 119,101.06, 164,367.44 and 78,745.44

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Solution

The fourth proportional to 119,101.06, 164,367.44 and 78,745.44 is: 108,673.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,101.06 : 164,367.44 = 78,745.44 : x
  2. Step 2: Convert to fraction form
    119,101.06/164,367.44 = 78,745.44/x
  3. Step 3: Cross multiply
    119,101.06x = 164,367.44 × 78,745.44
  4. Step 4: Simplify right side
    119,101.06x = 12,943,186,384.47
  5. Step 5: Solve for x
    x = 12,943,186,384.47/119,101.06
  6. Step 6: Final answer
    x = 108,673.98

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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.