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Finding the Fourth Proportional to 323,081.10, 445,848.03 and 188,945.10

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Solution

The fourth proportional to 323,081.10, 445,848.03 and 188,945.10 is: 260,741.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,081.10 : 445,848.03 = 188,945.10 : x
  2. Step 2: Convert to fraction form
    323,081.10/445,848.03 = 188,945.10/x
  3. Step 3: Cross multiply
    323,081.10x = 445,848.03 × 188,945.10
  4. Step 4: Simplify right side
    323,081.10x = 84,240,800,613.15
  5. Step 5: Solve for x
    x = 84,240,800,613.15/323,081.10
  6. Step 6: Final answer
    x = 260,741.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.