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Finding the Fourth Proportional to 156,954.15, 234,939.15 and 112,667.40

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Solution

The fourth proportional to 156,954.15, 234,939.15 and 112,667.40 is: 168,647.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,954.15 : 234,939.15 = 112,667.40 : x
  2. Step 2: Convert to fraction form
    156,954.15/234,939.15 = 112,667.40/x
  3. Step 3: Cross multiply
    156,954.15x = 234,939.15 × 112,667.40
  4. Step 4: Simplify right side
    156,954.15x = 26,469,983,188.71
  5. Step 5: Solve for x
    x = 26,469,983,188.71/156,954.15
  6. Step 6: Final answer
    x = 168,647.87

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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.