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Finding the Fourth Proportional to 243,898.76, 365,887.74 and 75,379.76

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Solution

The fourth proportional to 243,898.76, 365,887.74 and 75,379.76 is: 113,081.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,898.76 : 365,887.74 = 75,379.76 : x
  2. Step 2: Convert to fraction form
    243,898.76/365,887.74 = 75,379.76/x
  3. Step 3: Cross multiply
    243,898.76x = 365,887.74 × 75,379.76
  4. Step 4: Simplify right side
    243,898.76x = 27,580,530,028.14
  5. Step 5: Solve for x
    x = 27,580,530,028.14/243,898.76
  6. Step 6: Final answer
    x = 113,081.88

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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.