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Finding the Fourth Proportional to 180,205.87, 248,662.60 and 99,622.57

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Solution

The fourth proportional to 180,205.87, 248,662.60 and 99,622.57 is: 137,467.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,205.87 : 248,662.60 = 99,622.57 : x
  2. Step 2: Convert to fraction form
    180,205.87/248,662.60 = 99,622.57/x
  3. Step 3: Cross multiply
    180,205.87x = 248,662.60 × 99,622.57
  4. Step 4: Simplify right side
    180,205.87x = 24,772,407,274.88
  5. Step 5: Solve for x
    x = 24,772,407,274.88/180,205.87
  6. Step 6: Final answer
    x = 137,467.26

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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.