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Finding the Fourth Proportional to 202,602.21, 303,920.57 and 60,438.32

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Solution

The fourth proportional to 202,602.21, 303,920.57 and 60,438.32 is: 90,662.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,602.21 : 303,920.57 = 60,438.32 : x
  2. Step 2: Convert to fraction form
    202,602.21/303,920.57 = 60,438.32/x
  3. Step 3: Cross multiply
    202,602.21x = 303,920.57 × 60,438.32
  4. Step 4: Simplify right side
    202,602.21x = 18,368,448,664.24
  5. Step 5: Solve for x
    x = 18,368,448,664.24/202,602.21
  6. Step 6: Final answer
    x = 90,662.63

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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.