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Finding the Fourth Proportional to 201,641.02, 278,250.30 and 119,964.76

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Solution

The fourth proportional to 201,641.02, 278,250.30 and 119,964.76 is: 165,542.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,641.02 : 278,250.30 = 119,964.76 : x
  2. Step 2: Convert to fraction form
    201,641.02/278,250.30 = 119,964.76/x
  3. Step 3: Cross multiply
    201,641.02x = 278,250.30 × 119,964.76
  4. Step 4: Simplify right side
    201,641.02x = 33,380,230,459.43
  5. Step 5: Solve for x
    x = 33,380,230,459.43/201,641.02
  6. Step 6: Final answer
    x = 165,542.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.