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Finding the Fourth Proportional to 117,709.88, 162,440.67 and 63,994.94

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Solution

The fourth proportional to 117,709.88, 162,440.67 and 63,994.94 is: 88,313.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,709.88 : 162,440.67 = 63,994.94 : x
  2. Step 2: Convert to fraction form
    117,709.88/162,440.67 = 63,994.94/x
  3. Step 3: Cross multiply
    117,709.88x = 162,440.67 × 63,994.94
  4. Step 4: Simplify right side
    117,709.88x = 10,395,380,930.21
  5. Step 5: Solve for x
    x = 10,395,380,930.21/117,709.88
  6. Step 6: Final answer
    x = 88,313.58

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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.