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Finding the Fourth Proportional to 216,135.22, 324,219.22 and 58,361.38

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Solution

The fourth proportional to 216,135.22, 324,219.22 and 58,361.38 is: 87,546.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,135.22 : 324,219.22 = 58,361.38 : x
  2. Step 2: Convert to fraction form
    216,135.22/324,219.22 = 58,361.38/x
  3. Step 3: Cross multiply
    216,135.22x = 324,219.22 × 58,361.38
  4. Step 4: Simplify right side
    216,135.22x = 18,921,881,101.72
  5. Step 5: Solve for x
    x = 18,921,881,101.72/216,135.22
  6. Step 6: Final answer
    x = 87,546.50

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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.