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Finding the Fourth Proportional to 243,894.59, 365,921.44 and 108,942.21

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Solution

The fourth proportional to 243,894.59, 365,921.44 and 108,942.21 is: 163,448.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,894.59 : 365,921.44 = 108,942.21 : x
  2. Step 2: Convert to fraction form
    243,894.59/365,921.44 = 108,942.21/x
  3. Step 3: Cross multiply
    243,894.59x = 365,921.44 × 108,942.21
  4. Step 4: Simplify right side
    243,894.59x = 39,864,290,359.98
  5. Step 5: Solve for x
    x = 39,864,290,359.98/243,894.59
  6. Step 6: Final answer
    x = 163,448.85

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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.