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Finding the Fourth Proportional to 215,624.54, 323,042.52 and 156,313.10

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Solution

The fourth proportional to 215,624.54, 323,042.52 and 156,313.10 is: 234,183.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,624.54 : 323,042.52 = 156,313.10 : x
  2. Step 2: Convert to fraction form
    215,624.54/323,042.52 = 156,313.10/x
  3. Step 3: Cross multiply
    215,624.54x = 323,042.52 × 156,313.10
  4. Step 4: Simplify right side
    215,624.54x = 50,495,777,733.01
  5. Step 5: Solve for x
    x = 50,495,777,733.01/215,624.54
  6. Step 6: Final answer
    x = 234,183.82

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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.