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Finding the Fourth Proportional to 202,392.27, 303,565.32 and 69,255

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Solution

The fourth proportional to 202,392.27, 303,565.32 and 69,255 is: 103,874.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,392.27 : 303,565.32 = 69,255 : x
  2. Step 2: Convert to fraction form
    202,392.27/303,565.32 = 69,255/x
  3. Step 3: Cross multiply
    202,392.27x = 303,565.32 × 69,255
  4. Step 4: Simplify right side
    202,392.27x = 21,023,416,236.60
  5. Step 5: Solve for x
    x = 21,023,416,236.60/202,392.27
  6. Step 6: Final answer
    x = 103,874.60

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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.