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Finding the Fourth Proportional to 200,917.80, 301,031.10 and 95,509.80

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Solution

The fourth proportional to 200,917.80, 301,031.10 and 95,509.80 is: 143,100.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,917.80 : 301,031.10 = 95,509.80 : x
  2. Step 2: Convert to fraction form
    200,917.80/301,031.10 = 95,509.80/x
  3. Step 3: Cross multiply
    200,917.80x = 301,031.10 × 95,509.80
  4. Step 4: Simplify right side
    200,917.80x = 28,751,420,154.78
  5. Step 5: Solve for x
    x = 28,751,420,154.78/200,917.80
  6. Step 6: Final answer
    x = 143,100.41

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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.