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Finding the Fourth Proportional to 189,246.40, 283,628.40 and 100,542.40

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Solution

The fourth proportional to 189,246.40, 283,628.40 and 100,542.40 is: 150,685.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,246.40 : 283,628.40 = 100,542.40 : x
  2. Step 2: Convert to fraction form
    189,246.40/283,628.40 = 100,542.40/x
  3. Step 3: Cross multiply
    189,246.40x = 283,628.40 × 100,542.40
  4. Step 4: Simplify right side
    189,246.40x = 28,516,680,044.16
  5. Step 5: Solve for x
    x = 28,516,680,044.16/189,246.40
  6. Step 6: Final answer
    x = 150,685.46

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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.