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Finding the Fourth Proportional to 56,731.30, 78,299.69 and 32,857.96

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Solution

The fourth proportional to 56,731.30, 78,299.69 and 32,857.96 is: 45,350.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,731.30 : 78,299.69 = 32,857.96 : x
  2. Step 2: Convert to fraction form
    56,731.30/78,299.69 = 32,857.96/x
  3. Step 3: Cross multiply
    56,731.30x = 78,299.69 × 32,857.96
  4. Step 4: Simplify right side
    56,731.30x = 2,572,768,113.49
  5. Step 5: Solve for x
    x = 2,572,768,113.49/56,731.30
  6. Step 6: Final answer
    x = 45,350.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.