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Finding the Fourth Proportional to 99,858.08, 149,745.54 and 40,653.56

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Solution

The fourth proportional to 99,858.08, 149,745.54 and 40,653.56 is: 60,963.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,858.08 : 149,745.54 = 40,653.56 : x
  2. Step 2: Convert to fraction form
    99,858.08/149,745.54 = 40,653.56/x
  3. Step 3: Cross multiply
    99,858.08x = 149,745.54 × 40,653.56
  4. Step 4: Simplify right side
    99,858.08x = 6,087,689,295.12
  5. Step 5: Solve for x
    x = 6,087,689,295.12/99,858.08
  6. Step 6: Final answer
    x = 60,963.41

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1.5x scale

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.