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Finding the Fourth Proportional to 100,607.58, 150,916.41 and 38,282.94

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Solution

The fourth proportional to 100,607.58, 150,916.41 and 38,282.94 is: 57,426.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,607.58 : 150,916.41 = 38,282.94 : x
  2. Step 2: Convert to fraction form
    100,607.58/150,916.41 = 38,282.94/x
  3. Step 3: Cross multiply
    100,607.58x = 150,916.41 × 38,282.94
  4. Step 4: Simplify right side
    100,607.58x = 5,777,523,869.05
  5. Step 5: Solve for x
    x = 5,777,523,869.05/100,607.58
  6. Step 6: Final answer
    x = 57,426.33

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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.