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Finding the Fourth Proportional to 103,352.94, 154,758.75 and 67,702.11

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Solution

The fourth proportional to 103,352.94, 154,758.75 and 67,702.11 is: 101,375.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,352.94 : 154,758.75 = 67,702.11 : x
  2. Step 2: Convert to fraction form
    103,352.94/154,758.75 = 67,702.11/x
  3. Step 3: Cross multiply
    103,352.94x = 154,758.75 × 67,702.11
  4. Step 4: Simplify right side
    103,352.94x = 10,477,493,915.96
  5. Step 5: Solve for x
    x = 10,477,493,915.96/103,352.94
  6. Step 6: Final answer
    x = 101,375.87

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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.