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Finding the Fourth Proportional to 189,080.80, 283,621.20 and 83,910.40

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Solution

The fourth proportional to 189,080.80, 283,621.20 and 83,910.40 is: 125,865.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,080.80 : 283,621.20 = 83,910.40 : x
  2. Step 2: Convert to fraction form
    189,080.80/283,621.20 = 83,910.40/x
  3. Step 3: Cross multiply
    189,080.80x = 283,621.20 × 83,910.40
  4. Step 4: Simplify right side
    189,080.80x = 23,798,768,340.48
  5. Step 5: Solve for x
    x = 23,798,768,340.48/189,080.80
  6. Step 6: Final answer
    x = 125,865.60

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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.