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Finding the Fourth Proportional to 189,250.31, 283,864.32 and 70,911.74

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Solution

The fourth proportional to 189,250.31, 283,864.32 and 70,911.74 is: 106,363.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,250.31 : 283,864.32 = 70,911.74 : x
  2. Step 2: Convert to fraction form
    189,250.31/283,864.32 = 70,911.74/x
  3. Step 3: Cross multiply
    189,250.31x = 283,864.32 × 70,911.74
  4. Step 4: Simplify right side
    189,250.31x = 20,129,311,435.80
  5. Step 5: Solve for x
    x = 20,129,311,435.80/189,250.31
  6. Step 6: Final answer
    x = 106,363.43

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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.