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Finding the Fourth Proportional to 603,361.15, 905,040.95 and 154,082.35

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Solution

The fourth proportional to 603,361.15, 905,040.95 and 154,082.35 is: 231,123.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,361.15 : 905,040.95 = 154,082.35 : x
  2. Step 2: Convert to fraction form
    603,361.15/905,040.95 = 154,082.35/x
  3. Step 3: Cross multiply
    603,361.15x = 905,040.95 × 154,082.35
  4. Step 4: Simplify right side
    603,361.15x = 139,450,836,783.12
  5. Step 5: Solve for x
    x = 139,450,836,783.12/603,361.15
  6. Step 6: Final answer
    x = 231,123.33

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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.