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Finding the Fourth Proportional to 127,103.40, 190,655.10 and 33,618.60

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Solution

The fourth proportional to 127,103.40, 190,655.10 and 33,618.60 is: 50,427.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,103.40 : 190,655.10 = 33,618.60 : x
  2. Step 2: Convert to fraction form
    127,103.40/190,655.10 = 33,618.60/x
  3. Step 3: Cross multiply
    127,103.40x = 190,655.10 × 33,618.60
  4. Step 4: Simplify right side
    127,103.40x = 6,409,557,544.86
  5. Step 5: Solve for x
    x = 6,409,557,544.86/127,103.40
  6. Step 6: Final answer
    x = 50,427.90

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.