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Finding the Fourth Proportional to 122,765.51, 169,414.74 and 69,050.51

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Solution

The fourth proportional to 122,765.51, 169,414.74 and 69,050.51 is: 95,288.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,765.51 : 169,414.74 = 69,050.51 : x
  2. Step 2: Convert to fraction form
    122,765.51/169,414.74 = 69,050.51/x
  3. Step 3: Cross multiply
    122,765.51x = 169,414.74 × 69,050.51
  4. Step 4: Simplify right side
    122,765.51x = 11,698,173,351.44
  5. Step 5: Solve for x
    x = 11,698,173,351.44/122,765.51
  6. Step 6: Final answer
    x = 95,288.76

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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.