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Finding the Fourth Proportional to 56,718.99, 85,078.51 and 23,402.43

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Solution

The fourth proportional to 56,718.99, 85,078.51 and 23,402.43 is: 35,103.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,718.99 : 85,078.51 = 23,402.43 : x
  2. Step 2: Convert to fraction form
    56,718.99/85,078.51 = 23,402.43/x
  3. Step 3: Cross multiply
    56,718.99x = 85,078.51 × 23,402.43
  4. Step 4: Simplify right side
    56,718.99x = 1,991,043,874.78
  5. Step 5: Solve for x
    x = 1,991,043,874.78/56,718.99
  6. Step 6: Final answer
    x = 35,103.66

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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.