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Finding the Fourth Proportional to 202,756.20, 304,004.70 and 84,474.60

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Solution

The fourth proportional to 202,756.20, 304,004.70 and 84,474.60 is: 126,657.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,756.20 : 304,004.70 = 84,474.60 : x
  2. Step 2: Convert to fraction form
    202,756.20/304,004.70 = 84,474.60/x
  3. Step 3: Cross multiply
    202,756.20x = 304,004.70 × 84,474.60
  4. Step 4: Simplify right side
    202,756.20x = 25,680,675,430.62
  5. Step 5: Solve for x
    x = 25,680,675,430.62/202,756.20
  6. Step 6: Final answer
    x = 126,657.90

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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.