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Finding the Fourth Proportional to 74,188.26, 102,363.62 and 43,958.48

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Solution

The fourth proportional to 74,188.26, 102,363.62 and 43,958.48 is: 60,653.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,188.26 : 102,363.62 = 43,958.48 : x
  2. Step 2: Convert to fraction form
    74,188.26/102,363.62 = 43,958.48/x
  3. Step 3: Cross multiply
    74,188.26x = 102,363.62 × 43,958.48
  4. Step 4: Simplify right side
    74,188.26x = 4,499,748,410.89
  5. Step 5: Solve for x
    x = 4,499,748,410.89/74,188.26
  6. Step 6: Final answer
    x = 60,653.11

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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.