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Finding the Fourth Proportional to 68,414.63, 102,537.70 and 48,585.83

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Solution

The fourth proportional to 68,414.63, 102,537.70 and 48,585.83 is: 72,818.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,414.63 : 102,537.70 = 48,585.83 : x
  2. Step 2: Convert to fraction form
    68,414.63/102,537.70 = 48,585.83/x
  3. Step 3: Cross multiply
    68,414.63x = 102,537.70 × 48,585.83
  4. Step 4: Simplify right side
    68,414.63x = 4,981,878,626.64
  5. Step 5: Solve for x
    x = 4,981,878,626.64/68,414.63
  6. Step 6: Final answer
    x = 72,818.91

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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.