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Finding the Fourth Proportional to 134,959.86, 202,563.19 and 68,445.86

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Solution

The fourth proportional to 134,959.86, 202,563.19 and 68,445.86 is: 102,731.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,959.86 : 202,563.19 = 68,445.86 : x
  2. Step 2: Convert to fraction form
    134,959.86/202,563.19 = 68,445.86/x
  3. Step 3: Cross multiply
    134,959.86x = 202,563.19 × 68,445.86
  4. Step 4: Simplify right side
    134,959.86x = 13,864,611,743.89
  5. Step 5: Solve for x
    x = 13,864,611,743.89/134,959.86
  6. Step 6: Final answer
    x = 102,731.37

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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.