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Finding the Fourth Proportional to 243,959.80, 365,421.30 and 202,487.80

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Solution

The fourth proportional to 243,959.80, 365,421.30 and 202,487.80 is: 303,301.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,959.80 : 365,421.30 = 202,487.80 : x
  2. Step 2: Convert to fraction form
    243,959.80/365,421.30 = 202,487.80/x
  3. Step 3: Cross multiply
    243,959.80x = 365,421.30 × 202,487.80
  4. Step 4: Simplify right side
    243,959.80x = 73,993,355,110.14
  5. Step 5: Solve for x
    x = 73,993,355,110.14/243,959.80
  6. Step 6: Final answer
    x = 303,301.43

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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.