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Finding the Fourth Proportional to 117,953.37, 162,780.26 and 66,970.84

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Solution

The fourth proportional to 117,953.37, 162,780.26 and 66,970.84 is: 92,422.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,953.37 : 162,780.26 = 66,970.84 : x
  2. Step 2: Convert to fraction form
    117,953.37/162,780.26 = 66,970.84/x
  3. Step 3: Cross multiply
    117,953.37x = 162,780.26 × 66,970.84
  4. Step 4: Simplify right side
    117,953.37x = 10,901,530,903.43
  5. Step 5: Solve for x
    x = 10,901,530,903.43/117,953.37
  6. Step 6: Final answer
    x = 92,422.38

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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.