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Finding the Fourth Proportional to 73,801.70, 110,702.55 and 69,719.30

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Solution

The fourth proportional to 73,801.70, 110,702.55 and 69,719.30 is: 104,578.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,801.70 : 110,702.55 = 69,719.30 : x
  2. Step 2: Convert to fraction form
    73,801.70/110,702.55 = 69,719.30/x
  3. Step 3: Cross multiply
    73,801.70x = 110,702.55 × 69,719.30
  4. Step 4: Simplify right side
    73,801.70x = 7,718,104,294.22
  5. Step 5: Solve for x
    x = 7,718,104,294.22/73,801.70
  6. Step 6: Final answer
    x = 104,578.95

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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.