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Finding the Fourth Proportional to 125,761.64, 188,621.95 and 36,994.38

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Solution

The fourth proportional to 125,761.64, 188,621.95 and 36,994.38 is: 55,485.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,761.64 : 188,621.95 = 36,994.38 : x
  2. Step 2: Convert to fraction form
    125,761.64/188,621.95 = 36,994.38/x
  3. Step 3: Cross multiply
    125,761.64x = 188,621.95 × 36,994.38
  4. Step 4: Simplify right side
    125,761.64x = 6,977,952,094.64
  5. Step 5: Solve for x
    x = 6,977,952,094.64/125,761.64
  6. Step 6: Final answer
    x = 55,485.54

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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.