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Finding the Fourth Proportional to 79,435.58, 109,621.08 and 43,625.60

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Solution

The fourth proportional to 79,435.58, 109,621.08 and 43,625.60 is: 60,203.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,435.58 : 109,621.08 = 43,625.60 : x
  2. Step 2: Convert to fraction form
    79,435.58/109,621.08 = 43,625.60/x
  3. Step 3: Cross multiply
    79,435.58x = 109,621.08 × 43,625.60
  4. Step 4: Simplify right side
    79,435.58x = 4,782,285,387.65
  5. Step 5: Solve for x
    x = 4,782,285,387.65/79,435.58
  6. Step 6: Final answer
    x = 60,203.32

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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.