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Finding the Fourth Proportional to 214,461.03, 321,692.76 and 56,687.81

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Solution

The fourth proportional to 214,461.03, 321,692.76 and 56,687.81 is: 85,032.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,461.03 : 321,692.76 = 56,687.81 : x
  2. Step 2: Convert to fraction form
    214,461.03/321,692.76 = 56,687.81/x
  3. Step 3: Cross multiply
    214,461.03x = 321,692.76 × 56,687.81
  4. Step 4: Simplify right side
    214,461.03x = 18,236,058,861.49
  5. Step 5: Solve for x
    x = 18,236,058,861.49/214,461.03
  6. Step 6: Final answer
    x = 85,032.04

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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.