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Finding the Fourth Proportional to 168,836.64, 253,129.20 and 56,450.32

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Solution

The fourth proportional to 168,836.64, 253,129.20 and 56,450.32 is: 84,633.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,836.64 : 253,129.20 = 56,450.32 : x
  2. Step 2: Convert to fraction form
    168,836.64/253,129.20 = 56,450.32/x
  3. Step 3: Cross multiply
    168,836.64x = 253,129.20 × 56,450.32
  4. Step 4: Simplify right side
    168,836.64x = 14,289,224,341.34
  5. Step 5: Solve for x
    x = 14,289,224,341.34/168,836.64
  6. Step 6: Final answer
    x = 84,633.43

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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.