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Finding the Fourth Proportional to 121,002.96, 166,983.44 and 67,284.84

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Solution

The fourth proportional to 121,002.96, 166,983.44 and 67,284.84 is: 92,852.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,002.96 : 166,983.44 = 67,284.84 : x
  2. Step 2: Convert to fraction form
    121,002.96/166,983.44 = 67,284.84/x
  3. Step 3: Cross multiply
    121,002.96x = 166,983.44 × 67,284.84
  4. Step 4: Simplify right side
    121,002.96x = 11,235,453,706.63
  5. Step 5: Solve for x
    x = 11,235,453,706.63/121,002.96
  6. Step 6: Final answer
    x = 92,852.72

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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.