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Finding the Fourth Proportional to 72,361.76, 108,558.23 and 22,440.86

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Solution

The fourth proportional to 72,361.76, 108,558.23 and 22,440.86 is: 33,666.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,361.76 : 108,558.23 = 22,440.86 : x
  2. Step 2: Convert to fraction form
    72,361.76/108,558.23 = 22,440.86/x
  3. Step 3: Cross multiply
    72,361.76x = 108,558.23 × 22,440.86
  4. Step 4: Simplify right side
    72,361.76x = 2,436,139,386.28
  5. Step 5: Solve for x
    x = 2,436,139,386.28/72,361.76
  6. Step 6: Final answer
    x = 33,666.12

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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.