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Finding the Fourth Proportional to 56,863.99, 85,189.36 and 47,563.77

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Solution

The fourth proportional to 56,863.99, 85,189.36 and 47,563.77 is: 71,256.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,863.99 : 85,189.36 = 47,563.77 : x
  2. Step 2: Convert to fraction form
    56,863.99/85,189.36 = 47,563.77/x
  3. Step 3: Cross multiply
    56,863.99x = 85,189.36 × 47,563.77
  4. Step 4: Simplify right side
    56,863.99x = 4,051,927,125.49
  5. Step 5: Solve for x
    x = 4,051,927,125.49/56,863.99
  6. Step 6: Final answer
    x = 71,256.47

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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.