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Finding the Fourth Proportional to 74,845.36, 103,304.30 and 43,032.76

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Solution

The fourth proportional to 74,845.36, 103,304.30 and 43,032.76 is: 59,395.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,845.36 : 103,304.30 = 43,032.76 : x
  2. Step 2: Convert to fraction form
    74,845.36/103,304.30 = 43,032.76/x
  3. Step 3: Cross multiply
    74,845.36x = 103,304.30 × 43,032.76
  4. Step 4: Simplify right side
    74,845.36x = 4,445,469,148.87
  5. Step 5: Solve for x
    x = 4,445,469,148.87/74,845.36
  6. Step 6: Final answer
    x = 59,395.39

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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.