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Finding the Fourth Proportional to 118,495.80, 177,546.86 and 83,361.64

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Solution

The fourth proportional to 118,495.80, 177,546.86 and 83,361.64 is: 124,903.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,495.80 : 177,546.86 = 83,361.64 : x
  2. Step 2: Convert to fraction form
    118,495.80/177,546.86 = 83,361.64/x
  3. Step 3: Cross multiply
    118,495.80x = 177,546.86 × 83,361.64
  4. Step 4: Simplify right side
    118,495.80x = 14,800,597,426.45
  5. Step 5: Solve for x
    x = 14,800,597,426.45/118,495.80
  6. Step 6: Final answer
    x = 124,903.98

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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.