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Finding the Fourth Proportional to 125,690.44, 188,495.59 and 41,434.90

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Solution

The fourth proportional to 125,690.44, 188,495.59 and 41,434.90 is: 62,139.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,690.44 : 188,495.59 = 41,434.90 : x
  2. Step 2: Convert to fraction form
    125,690.44/188,495.59 = 41,434.90/x
  3. Step 3: Cross multiply
    125,690.44x = 188,495.59 × 41,434.90
  4. Step 4: Simplify right side
    125,690.44x = 7,810,295,922.09
  5. Step 5: Solve for x
    x = 7,810,295,922.09/125,690.44
  6. Step 6: Final answer
    x = 62,139.14

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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.