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Finding the Fourth Proportional to 243,559.80, 364,821.30 and 202,087.80

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Solution

The fourth proportional to 243,559.80, 364,821.30 and 202,087.80 is: 302,701.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,559.80 : 364,821.30 = 202,087.80 : x
  2. Step 2: Convert to fraction form
    243,559.80/364,821.30 = 202,087.80/x
  3. Step 3: Cross multiply
    243,559.80x = 364,821.30 × 202,087.80
  4. Step 4: Simplify right side
    243,559.80x = 73,725,933,910.14
  5. Step 5: Solve for x
    x = 73,725,933,910.14/243,559.80
  6. Step 6: Final answer
    x = 302,701.57

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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.