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Finding the Fourth Proportional to 92,577.60, 138,515.40 and 61,473.60

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Solution

The fourth proportional to 92,577.60, 138,515.40 and 61,473.60 is: 91,977.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,577.60 : 138,515.40 = 61,473.60 : x
  2. Step 2: Convert to fraction form
    92,577.60/138,515.40 = 61,473.60/x
  3. Step 3: Cross multiply
    92,577.60x = 138,515.40 × 61,473.60
  4. Step 4: Simplify right side
    92,577.60x = 8,515,040,293.44
  5. Step 5: Solve for x
    x = 8,515,040,293.44/92,577.60
  6. Step 6: Final answer
    x = 91,977.33

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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.