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Finding the Fourth Proportional to 243,376.44, 365,099.26 and 74,910.81

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Solution

The fourth proportional to 243,376.44, 365,099.26 and 74,910.81 is: 112,376.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,376.44 : 365,099.26 = 74,910.81 : x
  2. Step 2: Convert to fraction form
    243,376.44/365,099.26 = 74,910.81/x
  3. Step 3: Cross multiply
    243,376.44x = 365,099.26 × 74,910.81
  4. Step 4: Simplify right side
    243,376.44x = 27,349,881,297.00
  5. Step 5: Solve for x
    x = 27,349,881,297.00/243,376.44
  6. Step 6: Final answer
    x = 112,376.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.