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Finding the Fourth Proportional to 119,621.44, 165,079.08 and 65,906.32

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Solution

The fourth proportional to 119,621.44, 165,079.08 and 65,906.32 is: 90,951.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,621.44 : 165,079.08 = 65,906.32 : x
  2. Step 2: Convert to fraction form
    119,621.44/165,079.08 = 65,906.32/x
  3. Step 3: Cross multiply
    119,621.44x = 165,079.08 × 65,906.32
  4. Step 4: Simplify right side
    119,621.44x = 10,879,754,671.79
  5. Step 5: Solve for x
    x = 10,879,754,671.79/119,621.44
  6. Step 6: Final answer
    x = 90,951.54

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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.