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Finding the Fourth Proportional to 124,791.90, 187,151.40 and 44,820.60

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Solution

The fourth proportional to 124,791.90, 187,151.40 and 44,820.60 is: 67,217.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,791.90 : 187,151.40 = 44,820.60 : x
  2. Step 2: Convert to fraction form
    124,791.90/187,151.40 = 44,820.60/x
  3. Step 3: Cross multiply
    124,791.90x = 187,151.40 × 44,820.60
  4. Step 4: Simplify right side
    124,791.90x = 8,388,238,038.84
  5. Step 5: Solve for x
    x = 8,388,238,038.84/124,791.90
  6. Step 6: Final answer
    x = 67,217.81

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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.