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Finding the Fourth Proportional to 119,406.54, 164,804.57 and 68,453.48

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Solution

The fourth proportional to 119,406.54, 164,804.57 and 68,453.48 is: 94,479.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,406.54 : 164,804.57 = 68,453.48 : x
  2. Step 2: Convert to fraction form
    119,406.54/164,804.57 = 68,453.48/x
  3. Step 3: Cross multiply
    119,406.54x = 164,804.57 × 68,453.48
  4. Step 4: Simplify right side
    119,406.54x = 11,281,446,662.85
  5. Step 5: Solve for x
    x = 11,281,446,662.85/119,406.54
  6. Step 6: Final answer
    x = 94,479.30

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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.