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Finding the Fourth Proportional to 135,369.50, 203,050.11 and 64,343.30

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Solution

The fourth proportional to 135,369.50, 203,050.11 and 64,343.30 is: 96,512.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,369.50 : 203,050.11 = 64,343.30 : x
  2. Step 2: Convert to fraction form
    135,369.50/203,050.11 = 64,343.30/x
  3. Step 3: Cross multiply
    135,369.50x = 203,050.11 × 64,343.30
  4. Step 4: Simplify right side
    135,369.50x = 13,064,914,142.76
  5. Step 5: Solve for x
    x = 13,064,914,142.76/135,369.50
  6. Step 6: Final answer
    x = 96,512.98

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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.