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Finding the Fourth Proportional to 125,858.54, 188,742.86 and 41,603.15

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Solution

The fourth proportional to 125,858.54, 188,742.86 and 41,603.15 is: 62,389.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,858.54 : 188,742.86 = 41,603.15 : x
  2. Step 2: Convert to fraction form
    125,858.54/188,742.86 = 41,603.15/x
  3. Step 3: Cross multiply
    125,858.54x = 188,742.86 × 41,603.15
  4. Step 4: Simplify right side
    125,858.54x = 7,852,297,935.86
  5. Step 5: Solve for x
    x = 7,852,297,935.86/125,858.54
  6. Step 6: Final answer
    x = 62,389.87

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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.