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Finding the Fourth Proportional to 70,692.08, 106,027.11 and 45,907.83

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Solution

The fourth proportional to 70,692.08, 106,027.11 and 45,907.83 is: 68,854.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,692.08 : 106,027.11 = 45,907.83 : x
  2. Step 2: Convert to fraction form
    70,692.08/106,027.11 = 45,907.83/x
  3. Step 3: Cross multiply
    70,692.08x = 106,027.11 × 45,907.83
  4. Step 4: Simplify right side
    70,692.08x = 4,867,474,541.27
  5. Step 5: Solve for x
    x = 4,867,474,541.27/70,692.08
  6. Step 6: Final answer
    x = 68,854.60

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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.