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Finding the Fourth Proportional to 189,081.60, 283,622.40 and 64,422.60

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Solution

The fourth proportional to 189,081.60, 283,622.40 and 64,422.60 is: 96,633.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,081.60 : 283,622.40 = 64,422.60 : x
  2. Step 2: Convert to fraction form
    189,081.60/283,622.40 = 64,422.60/x
  3. Step 3: Cross multiply
    189,081.60x = 283,622.40 × 64,422.60
  4. Step 4: Simplify right side
    189,081.60x = 18,271,692,426.24
  5. Step 5: Solve for x
    x = 18,271,692,426.24/189,081.60
  6. Step 6: Final answer
    x = 96,633.90

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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.