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Finding the Fourth Proportional to 446,845.20, 670,138.20 and 162,502.80

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Solution

The fourth proportional to 446,845.20, 670,138.20 and 162,502.80 is: 243,707.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,845.20 : 670,138.20 = 162,502.80 : x
  2. Step 2: Convert to fraction form
    446,845.20/670,138.20 = 162,502.80/x
  3. Step 3: Cross multiply
    446,845.20x = 670,138.20 × 162,502.80
  4. Step 4: Simplify right side
    446,845.20x = 108,899,333,886.96
  5. Step 5: Solve for x
    x = 108,899,333,886.96/446,845.20
  6. Step 6: Final answer
    x = 243,707.07

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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.