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Finding the Fourth Proportional to 57,272.72, 85,939.11 and 41,607.18

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Solution

The fourth proportional to 57,272.72, 85,939.11 and 41,607.18 is: 62,432.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,272.72 : 85,939.11 = 41,607.18 : x
  2. Step 2: Convert to fraction form
    57,272.72/85,939.11 = 41,607.18/x
  3. Step 3: Cross multiply
    57,272.72x = 85,939.11 × 41,607.18
  4. Step 4: Simplify right side
    57,272.72x = 3,575,684,018.81
  5. Step 5: Solve for x
    x = 3,575,684,018.81/57,272.72
  6. Step 6: Final answer
    x = 62,432.59

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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.