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Finding the Fourth Proportional to 57,356.76, 79,118 and 36,099.12

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Solution

The fourth proportional to 57,356.76, 79,118 and 36,099.12 is: 49,795.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,356.76 : 79,118 = 36,099.12 : x
  2. Step 2: Convert to fraction form
    57,356.76/79,118 = 36,099.12/x
  3. Step 3: Cross multiply
    57,356.76x = 79,118 × 36,099.12
  4. Step 4: Simplify right side
    57,356.76x = 2,856,090,176.16
  5. Step 5: Solve for x
    x = 2,856,090,176.16/57,356.76
  6. Step 6: Final answer
    x = 49,795.18

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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.