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Finding the Fourth Proportional to 200,554.55, 300,643.38 and 67,341.36

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Solution

The fourth proportional to 200,554.55, 300,643.38 and 67,341.36 is: 100,948.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,554.55 : 300,643.38 = 67,341.36 : x
  2. Step 2: Convert to fraction form
    200,554.55/300,643.38 = 67,341.36/x
  3. Step 3: Cross multiply
    200,554.55x = 300,643.38 × 67,341.36
  4. Step 4: Simplify right side
    200,554.55x = 20,245,733,520.49
  5. Step 5: Solve for x
    x = 20,245,733,520.49/200,554.55
  6. Step 6: Final answer
    x = 100,948.76

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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.