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Finding the Fourth Proportional to 118,055.70, 162,912.12 and 64,339.56

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Solution

The fourth proportional to 118,055.70, 162,912.12 and 64,339.56 is: 88,786.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,055.70 : 162,912.12 = 64,339.56 : x
  2. Step 2: Convert to fraction form
    118,055.70/162,912.12 = 64,339.56/x
  3. Step 3: Cross multiply
    118,055.70x = 162,912.12 × 64,339.56
  4. Step 4: Simplify right side
    118,055.70x = 10,481,694,059.15
  5. Step 5: Solve for x
    x = 10,481,694,059.15/118,055.70
  6. Step 6: Final answer
    x = 88,786.01

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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.