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Finding the Fourth Proportional to 57,606, 79,522.92 and 40,624.08

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Solution

The fourth proportional to 57,606, 79,522.92 and 40,624.08 is: 56,080.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,606 : 79,522.92 = 40,624.08 : x
  2. Step 2: Convert to fraction form
    57,606/79,522.92 = 40,624.08/x
  3. Step 3: Cross multiply
    57,606x = 79,522.92 × 40,624.08
  4. Step 4: Simplify right side
    57,606x = 3,230,545,463.91
  5. Step 5: Solve for x
    x = 3,230,545,463.91/57,606
  6. Step 6: Final answer
    x = 56,080.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.