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Finding the Fourth Proportional to 272,043.90, 408,065.85 and 202,059.90

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Solution

The fourth proportional to 272,043.90, 408,065.85 and 202,059.90 is: 303,089.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,043.90 : 408,065.85 = 202,059.90 : x
  2. Step 2: Convert to fraction form
    272,043.90/408,065.85 = 202,059.90/x
  3. Step 3: Cross multiply
    272,043.90x = 408,065.85 × 202,059.90
  4. Step 4: Simplify right side
    272,043.90x = 82,453,744,844.42
  5. Step 5: Solve for x
    x = 82,453,744,844.42/272,043.90
  6. Step 6: Final answer
    x = 303,089.85

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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.