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Finding the Fourth Proportional to 117,852.84, 162,640.58 and 66,867.73

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Solution

The fourth proportional to 117,852.84, 162,640.58 and 66,867.73 is: 92,279.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,852.84 : 162,640.58 = 66,867.73 : x
  2. Step 2: Convert to fraction form
    117,852.84/162,640.58 = 66,867.73/x
  3. Step 3: Cross multiply
    117,852.84x = 162,640.58 × 66,867.73
  4. Step 4: Simplify right side
    117,852.84x = 10,875,405,649.54
  5. Step 5: Solve for x
    x = 10,875,405,649.54/117,852.84
  6. Step 6: Final answer
    x = 92,279.54

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1.5x scale

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.