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Finding the Fourth Proportional to 57,073.69, 78,836.95 and 43,808.86

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Solution

The fourth proportional to 57,073.69, 78,836.95 and 43,808.86 is: 60,513.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,073.69 : 78,836.95 = 43,808.86 : x
  2. Step 2: Convert to fraction form
    57,073.69/78,836.95 = 43,808.86/x
  3. Step 3: Cross multiply
    57,073.69x = 78,836.95 × 43,808.86
  4. Step 4: Simplify right side
    57,073.69x = 3,453,756,905.38
  5. Step 5: Solve for x
    x = 3,453,756,905.38/57,073.69
  6. Step 6: Final answer
    x = 60,513.99

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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.