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Finding the Fourth Proportional to 56,129.70, 84,194.55 and 14,576.70

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Solution

The fourth proportional to 56,129.70, 84,194.55 and 14,576.70 is: 21,865.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,129.70 : 84,194.55 = 14,576.70 : x
  2. Step 2: Convert to fraction form
    56,129.70/84,194.55 = 14,576.70/x
  3. Step 3: Cross multiply
    56,129.70x = 84,194.55 × 14,576.70
  4. Step 4: Simplify right side
    56,129.70x = 1,227,278,696.99
  5. Step 5: Solve for x
    x = 1,227,278,696.99/56,129.70
  6. Step 6: Final answer
    x = 21,865.05

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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.