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Finding the Fourth Proportional to 69,358.92, 104,038.40 and 16,768.40

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Solution

The fourth proportional to 69,358.92, 104,038.40 and 16,768.40 is: 25,152.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,358.92 : 104,038.40 = 16,768.40 : x
  2. Step 2: Convert to fraction form
    69,358.92/104,038.40 = 16,768.40/x
  3. Step 3: Cross multiply
    69,358.92x = 104,038.40 × 16,768.40
  4. Step 4: Simplify right side
    69,358.92x = 1,744,557,506.56
  5. Step 5: Solve for x
    x = 1,744,557,506.56/69,358.92
  6. Step 6: Final answer
    x = 25,152.60

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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.