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Finding the Fourth Proportional to 163,387.90, 244,737.42 and 74,716.03

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Solution

The fourth proportional to 163,387.90, 244,737.42 and 74,716.03 is: 111,916.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,387.90 : 244,737.42 = 74,716.03 : x
  2. Step 2: Convert to fraction form
    163,387.90/244,737.42 = 74,716.03/x
  3. Step 3: Cross multiply
    163,387.90x = 244,737.42 × 74,716.03
  4. Step 4: Simplify right side
    163,387.90x = 18,285,808,414.84
  5. Step 5: Solve for x
    x = 18,285,808,414.84/163,387.90
  6. Step 6: Final answer
    x = 111,916.54

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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.