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Finding the Fourth Proportional to 265,852.20, 398,853.63 and 108,193.80

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Solution

The fourth proportional to 265,852.20, 398,853.63 and 108,193.80 is: 162,321.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,852.20 : 398,853.63 = 108,193.80 : x
  2. Step 2: Convert to fraction form
    265,852.20/398,853.63 = 108,193.80/x
  3. Step 3: Cross multiply
    265,852.20x = 398,853.63 × 108,193.80
  4. Step 4: Simplify right side
    265,852.20x = 43,153,489,873.49
  5. Step 5: Solve for x
    x = 43,153,489,873.49/265,852.20
  6. Step 6: Final answer
    x = 162,321.36

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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.