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Finding the Fourth Proportional to 272,051.90, 408,077.85 and 202,067.90

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Solution

The fourth proportional to 272,051.90, 408,077.85 and 202,067.90 is: 303,101.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,051.90 : 408,077.85 = 202,067.90 : x
  2. Step 2: Convert to fraction form
    272,051.90/408,077.85 = 202,067.90/x
  3. Step 3: Cross multiply
    272,051.90x = 408,077.85 × 202,067.90
  4. Step 4: Simplify right side
    272,051.90x = 82,459,434,186.02
  5. Step 5: Solve for x
    x = 82,459,434,186.02/272,051.90
  6. Step 6: Final answer
    x = 303,101.85

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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.