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Finding the Fourth Proportional to 224,361.71, 336,288.15 and 91,074.99

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Solution

The fourth proportional to 224,361.71, 336,288.15 and 91,074.99 is: 136,509.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,361.71 : 336,288.15 = 91,074.99 : x
  2. Step 2: Convert to fraction form
    224,361.71/336,288.15 = 91,074.99/x
  3. Step 3: Cross multiply
    224,361.71x = 336,288.15 × 91,074.99
  4. Step 4: Simplify right side
    224,361.71x = 30,627,439,898.37
  5. Step 5: Solve for x
    x = 30,627,439,898.37/224,361.71
  6. Step 6: Final answer
    x = 136,509.21

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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.