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Finding the Fourth Proportional to 72,361.11, 108,541.68 and 22,440

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Solution

The fourth proportional to 72,361.11, 108,541.68 and 22,440 is: 33,660.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,361.11 : 108,541.68 = 22,440 : x
  2. Step 2: Convert to fraction form
    72,361.11/108,541.68 = 22,440/x
  3. Step 3: Cross multiply
    72,361.11x = 108,541.68 × 22,440
  4. Step 4: Simplify right side
    72,361.11x = 2,435,675,299.20
  5. Step 5: Solve for x
    x = 2,435,675,299.20/72,361.11
  6. Step 6: Final answer
    x = 33,660.00

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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.