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Finding the Fourth Proportional to 74,735, 103,134.30 and 41,201.72

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Solution

The fourth proportional to 74,735, 103,134.30 and 41,201.72 is: 56,858.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,735 : 103,134.30 = 41,201.72 : x
  2. Step 2: Convert to fraction form
    74,735/103,134.30 = 41,201.72/x
  3. Step 3: Cross multiply
    74,735x = 103,134.30 × 41,201.72
  4. Step 4: Simplify right side
    74,735x = 4,249,310,551.00
  5. Step 5: Solve for x
    x = 4,249,310,551.00/74,735
  6. Step 6: Final answer
    x = 56,858.37

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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.