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Finding the Fourth Proportional to 57,240.68, 85,890.18 and 26,071.88

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Solution

The fourth proportional to 57,240.68, 85,890.18 and 26,071.88 is: 39,121.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,240.68 : 85,890.18 = 26,071.88 : x
  2. Step 2: Convert to fraction form
    57,240.68/85,890.18 = 26,071.88/x
  3. Step 3: Cross multiply
    57,240.68x = 85,890.18 × 26,071.88
  4. Step 4: Simplify right side
    57,240.68x = 2,239,318,466.14
  5. Step 5: Solve for x
    x = 2,239,318,466.14/57,240.68
  6. Step 6: Final answer
    x = 39,121.10

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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.