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Finding the Fourth Proportional to 202,218.60, 303,375.36 and 69,099.96

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Solution

The fourth proportional to 202,218.60, 303,375.36 and 69,099.96 is: 103,666.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,218.60 : 303,375.36 = 69,099.96 : x
  2. Step 2: Convert to fraction form
    202,218.60/303,375.36 = 69,099.96/x
  3. Step 3: Cross multiply
    202,218.60x = 303,375.36 × 69,099.96
  4. Step 4: Simplify right side
    202,218.60x = 20,963,225,240.99
  5. Step 5: Solve for x
    x = 20,963,225,240.99/202,218.60
  6. Step 6: Final answer
    x = 103,666.16

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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.