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Finding the Fourth Proportional to 56,983.68, 85,492.80 and 40,375.89

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Solution

The fourth proportional to 56,983.68, 85,492.80 and 40,375.89 is: 60,576.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,983.68 : 85,492.80 = 40,375.89 : x
  2. Step 2: Convert to fraction form
    56,983.68/85,492.80 = 40,375.89/x
  3. Step 3: Cross multiply
    56,983.68x = 85,492.80 × 40,375.89
  4. Step 4: Simplify right side
    56,983.68x = 3,451,847,888.59
  5. Step 5: Solve for x
    x = 3,451,847,888.59/56,983.68
  6. Step 6: Final answer
    x = 60,576.08

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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.