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Finding the Fourth Proportional to 180,431.22, 248,993.25 and 99,858.90

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Solution

The fourth proportional to 180,431.22, 248,993.25 and 99,858.90 is: 137,804.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,431.22 : 248,993.25 = 99,858.90 : x
  2. Step 2: Convert to fraction form
    180,431.22/248,993.25 = 99,858.90/x
  3. Step 3: Cross multiply
    180,431.22x = 248,993.25 × 99,858.90
  4. Step 4: Simplify right side
    180,431.22x = 24,864,192,052.43
  5. Step 5: Solve for x
    x = 24,864,192,052.43/180,431.22
  6. Step 6: Final answer
    x = 137,804.27

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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.