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Finding the Fourth Proportional to 74,694.76, 103,083.76 and 41,160.76

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Solution

The fourth proportional to 74,694.76, 103,083.76 and 41,160.76 is: 56,804.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,694.76 : 103,083.76 = 41,160.76 : x
  2. Step 2: Convert to fraction form
    74,694.76/103,083.76 = 41,160.76/x
  3. Step 3: Cross multiply
    74,694.76x = 103,083.76 × 41,160.76
  4. Step 4: Simplify right side
    74,694.76x = 4,243,005,905.26
  5. Step 5: Solve for x
    x = 4,243,005,905.26/74,694.76
  6. Step 6: Final answer
    x = 56,804.60

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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.