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Finding the Fourth Proportional to 149,718.70, 224,578.05 and 70,986.70

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Solution

The fourth proportional to 149,718.70, 224,578.05 and 70,986.70 is: 106,480.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,718.70 : 224,578.05 = 70,986.70 : x
  2. Step 2: Convert to fraction form
    149,718.70/224,578.05 = 70,986.70/x
  3. Step 3: Cross multiply
    149,718.70x = 224,578.05 × 70,986.70
  4. Step 4: Simplify right side
    149,718.70x = 15,942,054,661.94
  5. Step 5: Solve for x
    x = 15,942,054,661.94/149,718.70
  6. Step 6: Final answer
    x = 106,480.05

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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.