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Finding the Fourth Proportional to 67,768.70, 93,465.57 and 47,692.10

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Solution

The fourth proportional to 67,768.70, 93,465.57 and 47,692.10 is: 65,776.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,768.70 : 93,465.57 = 47,692.10 : x
  2. Step 2: Convert to fraction form
    67,768.70/93,465.57 = 47,692.10/x
  3. Step 3: Cross multiply
    67,768.70x = 93,465.57 × 47,692.10
  4. Step 4: Simplify right side
    67,768.70x = 4,457,569,311.00
  5. Step 5: Solve for x
    x = 4,457,569,311.00/67,768.70
  6. Step 6: Final answer
    x = 65,776.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.