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Finding the Fourth Proportional to 74,805.92, 103,232.72 and 41,273.12

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Solution

The fourth proportional to 74,805.92, 103,232.72 and 41,273.12 is: 56,957.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,805.92 : 103,232.72 = 41,273.12 : x
  2. Step 2: Convert to fraction form
    74,805.92/103,232.72 = 41,273.12/x
  3. Step 3: Cross multiply
    74,805.92x = 103,232.72 × 41,273.12
  4. Step 4: Simplify right side
    74,805.92x = 4,260,736,440.49
  5. Step 5: Solve for x
    x = 4,260,736,440.49/74,805.92
  6. Step 6: Final answer
    x = 56,957.21

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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.