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Finding the Fourth Proportional to 125,580.83, 173,201.31 and 82,604.45

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Solution

The fourth proportional to 125,580.83, 173,201.31 and 82,604.45 is: 113,928.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,580.83 : 173,201.31 = 82,604.45 : x
  2. Step 2: Convert to fraction form
    125,580.83/173,201.31 = 82,604.45/x
  3. Step 3: Cross multiply
    125,580.83x = 173,201.31 × 82,604.45
  4. Step 4: Simplify right side
    125,580.83x = 14,307,198,085.82
  5. Step 5: Solve for x
    x = 14,307,198,085.82/125,580.83
  6. Step 6: Final answer
    x = 113,928.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.