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Finding the Fourth Proportional to 57,162.60, 85,830.30 and 44,029.80

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Solution

The fourth proportional to 57,162.60, 85,830.30 and 44,029.80 is: 66,111.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,162.60 : 85,830.30 = 44,029.80 : x
  2. Step 2: Convert to fraction form
    57,162.60/85,830.30 = 44,029.80/x
  3. Step 3: Cross multiply
    57,162.60x = 85,830.30 × 44,029.80
  4. Step 4: Simplify right side
    57,162.60x = 3,779,090,942.94
  5. Step 5: Solve for x
    x = 3,779,090,942.94/57,162.60
  6. Step 6: Final answer
    x = 66,111.25

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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.