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Finding the Fourth Proportional to 74,945.84, 103,425.18 and 41,411.84

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Solution

The fourth proportional to 74,945.84, 103,425.18 and 41,411.84 is: 57,148.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,945.84 : 103,425.18 = 41,411.84 : x
  2. Step 2: Convert to fraction form
    74,945.84/103,425.18 = 41,411.84/x
  3. Step 3: Cross multiply
    74,945.84x = 103,425.18 × 41,411.84
  4. Step 4: Simplify right side
    74,945.84x = 4,283,027,006.13
  5. Step 5: Solve for x
    x = 4,283,027,006.13/74,945.84
  6. Step 6: Final answer
    x = 57,148.30

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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.