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Finding the Fourth Proportional to 85,508.37, 118,000.68 and 47,782.62

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Solution

The fourth proportional to 85,508.37, 118,000.68 and 47,782.62 is: 65,939.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,508.37 : 118,000.68 = 47,782.62 : x
  2. Step 2: Convert to fraction form
    85,508.37/118,000.68 = 47,782.62/x
  3. Step 3: Cross multiply
    85,508.37x = 118,000.68 × 47,782.62
  4. Step 4: Simplify right side
    85,508.37x = 5,638,381,652.18
  5. Step 5: Solve for x
    x = 5,638,381,652.18/85,508.37
  6. Step 6: Final answer
    x = 65,939.53

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