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Finding the Fourth Proportional to 68,123.58, 102,037.68 and 32,989.56

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Solution

The fourth proportional to 68,123.58, 102,037.68 and 32,989.56 is: 49,412.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,123.58 : 102,037.68 = 32,989.56 : x
  2. Step 2: Convert to fraction form
    68,123.58/102,037.68 = 32,989.56/x
  3. Step 3: Cross multiply
    68,123.58x = 102,037.68 × 32,989.56
  4. Step 4: Simplify right side
    68,123.58x = 3,366,178,545.43
  5. Step 5: Solve for x
    x = 3,366,178,545.43/68,123.58
  6. Step 6: Final answer
    x = 49,412.82

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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.