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Finding the Fourth Proportional to 216,372.43, 324,558.78 and 141,555.43

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Solution

The fourth proportional to 216,372.43, 324,558.78 and 141,555.43 is: 212,333.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,372.43 : 324,558.78 = 141,555.43 : x
  2. Step 2: Convert to fraction form
    216,372.43/324,558.78 = 141,555.43/x
  3. Step 3: Cross multiply
    216,372.43x = 324,558.78 × 141,555.43
  4. Step 4: Simplify right side
    216,372.43x = 45,943,057,663.18
  5. Step 5: Solve for x
    x = 45,943,057,663.18/216,372.43
  6. Step 6: Final answer
    x = 212,333.23

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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.