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Finding the Fourth Proportional to 125,317.90, 187,987.89 and 35,361.41

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Solution

The fourth proportional to 125,317.90, 187,987.89 and 35,361.41 is: 53,045.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,317.90 : 187,987.89 = 35,361.41 : x
  2. Step 2: Convert to fraction form
    125,317.90/187,987.89 = 35,361.41/x
  3. Step 3: Cross multiply
    125,317.90x = 187,987.89 × 35,361.41
  4. Step 4: Simplify right side
    125,317.90x = 6,647,515,913.39
  5. Step 5: Solve for x
    x = 6,647,515,913.39/125,317.90
  6. Step 6: Final answer
    x = 53,045.22

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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.