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Finding the Fourth Proportional to 92,054.40, 138,081.60 and 54,729.60

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Solution

The fourth proportional to 92,054.40, 138,081.60 and 54,729.60 is: 82,094.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,054.40 : 138,081.60 = 54,729.60 : x
  2. Step 2: Convert to fraction form
    92,054.40/138,081.60 = 54,729.60/x
  3. Step 3: Cross multiply
    92,054.40x = 138,081.60 × 54,729.60
  4. Step 4: Simplify right side
    92,054.40x = 7,557,150,735.36
  5. Step 5: Solve for x
    x = 7,557,150,735.36/92,054.40
  6. Step 6: Final answer
    x = 82,094.40

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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.