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Finding the Fourth Proportional to 64,116.56, 96,175.56 and 19,742.96

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Solution

The fourth proportional to 64,116.56, 96,175.56 and 19,742.96 is: 29,614.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,116.56 : 96,175.56 = 19,742.96 : x
  2. Step 2: Convert to fraction form
    64,116.56/96,175.56 = 19,742.96/x
  3. Step 3: Cross multiply
    64,116.56x = 96,175.56 × 19,742.96
  4. Step 4: Simplify right side
    64,116.56x = 1,898,790,234.06
  5. Step 5: Solve for x
    x = 1,898,790,234.06/64,116.56
  6. Step 6: Final answer
    x = 29,614.66

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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.