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Finding the Fourth Proportional to 57,291.72, 79,101.12 and 43,838.94

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Solution

The fourth proportional to 57,291.72, 79,101.12 and 43,838.94 is: 60,527.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,291.72 : 79,101.12 = 43,838.94 : x
  2. Step 2: Convert to fraction form
    57,291.72/79,101.12 = 43,838.94/x
  3. Step 3: Cross multiply
    57,291.72x = 79,101.12 × 43,838.94
  4. Step 4: Simplify right side
    57,291.72x = 3,467,709,253.61
  5. Step 5: Solve for x
    x = 3,467,709,253.61/57,291.72
  6. Step 6: Final answer
    x = 60,527.23

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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.