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Finding the Fourth Proportional to 76,494.20, 114,696.74 and 29,692.40

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Solution

The fourth proportional to 76,494.20, 114,696.74 and 29,692.40 is: 44,521.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,494.20 : 114,696.74 = 29,692.40 : x
  2. Step 2: Convert to fraction form
    76,494.20/114,696.74 = 29,692.40/x
  3. Step 3: Cross multiply
    76,494.20x = 114,696.74 × 29,692.40
  4. Step 4: Simplify right side
    76,494.20x = 3,405,621,482.78
  5. Step 5: Solve for x
    x = 3,405,621,482.78/76,494.20
  6. Step 6: Final answer
    x = 44,521.30

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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.