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Finding the Fourth Proportional to 150,963.45, 208,325.33 and 82,980.56

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Solution

The fourth proportional to 150,963.45, 208,325.33 and 82,980.56 is: 114,510.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,963.45 : 208,325.33 = 82,980.56 : x
  2. Step 2: Convert to fraction form
    150,963.45/208,325.33 = 82,980.56/x
  3. Step 3: Cross multiply
    150,963.45x = 208,325.33 × 82,980.56
  4. Step 4: Simplify right side
    150,963.45x = 17,286,952,545.58
  5. Step 5: Solve for x
    x = 17,286,952,545.58/150,963.45
  6. Step 6: Final answer
    x = 114,510.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.