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Finding the Fourth Proportional to 118,961.60, 178,322.40 and 44,033.60

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Solution

The fourth proportional to 118,961.60, 178,322.40 and 44,033.60 is: 66,005.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,961.60 : 178,322.40 = 44,033.60 : x
  2. Step 2: Convert to fraction form
    118,961.60/178,322.40 = 44,033.60/x
  3. Step 3: Cross multiply
    118,961.60x = 178,322.40 × 44,033.60
  4. Step 4: Simplify right side
    118,961.60x = 7,852,177,232.64
  5. Step 5: Solve for x
    x = 7,852,177,232.64/118,961.60
  6. Step 6: Final answer
    x = 66,005.98

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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.