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Finding the Fourth Proportional to 124,740, 187,111.62 and 41,634

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Solution

The fourth proportional to 124,740, 187,111.62 and 41,634 is: 62,451.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,740 : 187,111.62 = 41,634 : x
  2. Step 2: Convert to fraction form
    124,740/187,111.62 = 41,634/x
  3. Step 3: Cross multiply
    124,740x = 187,111.62 × 41,634
  4. Step 4: Simplify right side
    124,740x = 7,790,205,187.08
  5. Step 5: Solve for x
    x = 7,790,205,187.08/124,740
  6. Step 6: Final answer
    x = 62,451.54

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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.