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Finding the Fourth Proportional to 202,060.40, 303,090.60 and 61,818.80

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Solution

The fourth proportional to 202,060.40, 303,090.60 and 61,818.80 is: 92,728.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,060.40 : 303,090.60 = 61,818.80 : x
  2. Step 2: Convert to fraction form
    202,060.40/303,090.60 = 61,818.80/x
  3. Step 3: Cross multiply
    202,060.40x = 303,090.60 × 61,818.80
  4. Step 4: Simplify right side
    202,060.40x = 18,736,697,183.28
  5. Step 5: Solve for x
    x = 18,736,697,183.28/202,060.40
  6. Step 6: Final answer
    x = 92,728.20

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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.