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Finding the Fourth Proportional to 243,400.96, 365,059.32 and 65,866.51

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Solution

The fourth proportional to 243,400.96, 365,059.32 and 65,866.51 is: 98,788.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,400.96 : 365,059.32 = 65,866.51 : x
  2. Step 2: Convert to fraction form
    243,400.96/365,059.32 = 65,866.51/x
  3. Step 3: Cross multiply
    243,400.96x = 365,059.32 × 65,866.51
  4. Step 4: Simplify right side
    243,400.96x = 24,045,183,351.37
  5. Step 5: Solve for x
    x = 24,045,183,351.37/243,400.96
  6. Step 6: Final answer
    x = 98,788.37

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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.