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Finding the Fourth Proportional to 69,694.08, 103,705.92 and 69,461.76

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Solution

The fourth proportional to 69,694.08, 103,705.92 and 69,461.76 is: 103,360.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,694.08 : 103,705.92 = 69,461.76 : x
  2. Step 2: Convert to fraction form
    69,694.08/103,705.92 = 69,461.76/x
  3. Step 3: Cross multiply
    69,694.08x = 103,705.92 × 69,461.76
  4. Step 4: Simplify right side
    69,694.08x = 7,203,595,725.62
  5. Step 5: Solve for x
    x = 7,203,595,725.62/69,694.08
  6. Step 6: Final answer
    x = 103,360.22

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.