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Finding the Fourth Proportional to 189,069.60, 283,604.40 and 153,640.20

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Solution

The fourth proportional to 189,069.60, 283,604.40 and 153,640.20 is: 230,460.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,069.60 : 283,604.40 = 153,640.20 : x
  2. Step 2: Convert to fraction form
    189,069.60/283,604.40 = 153,640.20/x
  3. Step 3: Cross multiply
    189,069.60x = 283,604.40 × 153,640.20
  4. Step 4: Simplify right side
    189,069.60x = 43,573,036,736.88
  5. Step 5: Solve for x
    x = 43,573,036,736.88/189,069.60
  6. Step 6: Final answer
    x = 230,460.30

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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.