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Finding the Fourth Proportional to 243,763.56, 365,694.54 and 143,995.32

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Solution

The fourth proportional to 243,763.56, 365,694.54 and 143,995.32 is: 216,022.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,763.56 : 365,694.54 = 143,995.32 : x
  2. Step 2: Convert to fraction form
    243,763.56/365,694.54 = 143,995.32/x
  3. Step 3: Cross multiply
    243,763.56x = 365,694.54 × 143,995.32
  4. Step 4: Simplify right side
    243,763.56x = 52,658,302,309.55
  5. Step 5: Solve for x
    x = 52,658,302,309.55/243,763.56
  6. Step 6: Final answer
    x = 216,022.04

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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.