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Finding the Fourth Proportional to 75,344.50, 103,980.27 and 41,810.50

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Solution

The fourth proportional to 75,344.50, 103,980.27 and 41,810.50 is: 57,701.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,344.50 : 103,980.27 = 41,810.50 : x
  2. Step 2: Convert to fraction form
    75,344.50/103,980.27 = 41,810.50/x
  3. Step 3: Cross multiply
    75,344.50x = 103,980.27 × 41,810.50
  4. Step 4: Simplify right side
    75,344.50x = 4,347,467,078.84
  5. Step 5: Solve for x
    x = 4,347,467,078.84/75,344.50
  6. Step 6: Final answer
    x = 57,701.19

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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.