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Finding the Fourth Proportional to 125,410.36, 188,093.76 and 49,488.64

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Solution

The fourth proportional to 125,410.36, 188,093.76 and 49,488.64 is: 74,224.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,410.36 : 188,093.76 = 49,488.64 : x
  2. Step 2: Convert to fraction form
    125,410.36/188,093.76 = 49,488.64/x
  3. Step 3: Cross multiply
    125,410.36x = 188,093.76 × 49,488.64
  4. Step 4: Simplify right side
    125,410.36x = 9,308,504,374.89
  5. Step 5: Solve for x
    x = 9,308,504,374.89/125,410.36
  6. Step 6: Final answer
    x = 74,224.37

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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.