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Finding the Fourth Proportional to 77,237.88, 106,579.50 and 43,241.64

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Solution

The fourth proportional to 77,237.88, 106,579.50 and 43,241.64 is: 59,668.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,237.88 : 106,579.50 = 43,241.64 : x
  2. Step 2: Convert to fraction form
    77,237.88/106,579.50 = 43,241.64/x
  3. Step 3: Cross multiply
    77,237.88x = 106,579.50 × 43,241.64
  4. Step 4: Simplify right side
    77,237.88x = 4,608,672,370.38
  5. Step 5: Solve for x
    x = 4,608,672,370.38/77,237.88
  6. Step 6: Final answer
    x = 59,668.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.