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Finding the Fourth Proportional to 220,790.92, 330,956.34 and 102,364.60

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Solution

The fourth proportional to 220,790.92, 330,956.34 and 102,364.60 is: 153,440.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,790.92 : 330,956.34 = 102,364.60 : x
  2. Step 2: Convert to fraction form
    220,790.92/330,956.34 = 102,364.60/x
  3. Step 3: Cross multiply
    220,790.92x = 330,956.34 × 102,364.60
  4. Step 4: Simplify right side
    220,790.92x = 33,878,213,361.56
  5. Step 5: Solve for x
    x = 33,878,213,361.56/220,790.92
  6. Step 6: Final answer
    x = 153,440.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.