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Finding the Fourth Proportional to 146,874.64, 202,688.04 and 79,806.64

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Solution

The fourth proportional to 146,874.64, 202,688.04 and 79,806.64 is: 110,133.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,874.64 : 202,688.04 = 79,806.64 : x
  2. Step 2: Convert to fraction form
    146,874.64/202,688.04 = 79,806.64/x
  3. Step 3: Cross multiply
    146,874.64x = 202,688.04 × 79,806.64
  4. Step 4: Simplify right side
    146,874.64x = 16,175,851,440.59
  5. Step 5: Solve for x
    x = 16,175,851,440.59/146,874.64
  6. Step 6: Final answer
    x = 110,133.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.