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Finding the Fourth Proportional to 125,858.96, 188,743.49 and 41,603.57

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Solution

The fourth proportional to 125,858.96, 188,743.49 and 41,603.57 is: 62,390.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,858.96 : 188,743.49 = 41,603.57 : x
  2. Step 2: Convert to fraction form
    125,858.96/188,743.49 = 41,603.57/x
  3. Step 3: Cross multiply
    125,858.96x = 188,743.49 × 41,603.57
  4. Step 4: Simplify right side
    125,858.96x = 7,852,403,889.02
  5. Step 5: Solve for x
    x = 7,852,403,889.02/125,858.96
  6. Step 6: Final answer
    x = 62,390.50

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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.