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Finding the Fourth Proportional to 156,967.20, 235,450.80 and 63,424.80

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Solution

The fourth proportional to 156,967.20, 235,450.80 and 63,424.80 is: 95,137.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,967.20 : 235,450.80 = 63,424.80 : x
  2. Step 2: Convert to fraction form
    156,967.20/235,450.80 = 63,424.80/x
  3. Step 3: Cross multiply
    156,967.20x = 235,450.80 × 63,424.80
  4. Step 4: Simplify right side
    156,967.20x = 14,933,419,899.84
  5. Step 5: Solve for x
    x = 14,933,419,899.84/156,967.20
  6. Step 6: Final answer
    x = 95,137.20

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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.