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Finding the Fourth Proportional to 352,784.08, 486,845.49 and 191,640.43

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Solution

The fourth proportional to 352,784.08, 486,845.49 and 191,640.43 is: 264,465.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,784.08 : 486,845.49 = 191,640.43 : x
  2. Step 2: Convert to fraction form
    352,784.08/486,845.49 = 191,640.43/x
  3. Step 3: Cross multiply
    352,784.08x = 486,845.49 × 191,640.43
  4. Step 4: Simplify right side
    352,784.08x = 93,299,279,047.16
  5. Step 5: Solve for x
    x = 93,299,279,047.16/352,784.08
  6. Step 6: Final answer
    x = 264,465.67

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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.