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Finding the Fourth Proportional to 56,129.42, 84,193.92 and 14,576.42

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Solution

The fourth proportional to 56,129.42, 84,193.92 and 14,576.42 is: 21,864.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,129.42 : 84,193.92 = 14,576.42 : x
  2. Step 2: Convert to fraction form
    56,129.42/84,193.92 = 14,576.42/x
  3. Step 3: Cross multiply
    56,129.42x = 84,193.92 × 14,576.42
  4. Step 4: Simplify right side
    56,129.42x = 1,227,245,939.37
  5. Step 5: Solve for x
    x = 1,227,245,939.37/56,129.42
  6. Step 6: Final answer
    x = 21,864.58

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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.