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Finding the Fourth Proportional to 74,812.88, 103,243.94 and 41,281.04

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Solution

The fourth proportional to 74,812.88, 103,243.94 and 41,281.04 is: 56,969.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,812.88 : 103,243.94 = 41,281.04 : x
  2. Step 2: Convert to fraction form
    74,812.88/103,243.94 = 41,281.04/x
  3. Step 3: Cross multiply
    74,812.88x = 103,243.94 × 41,281.04
  4. Step 4: Simplify right side
    74,812.88x = 4,262,016,494.27
  5. Step 5: Solve for x
    x = 4,262,016,494.27/74,812.88
  6. Step 6: Final answer
    x = 56,969.02

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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.