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Finding the Fourth Proportional to 57,208.88, 78,945 and 32,060

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Solution

The fourth proportional to 57,208.88, 78,945 and 32,060 is: 44,240.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,208.88 : 78,945 = 32,060 : x
  2. Step 2: Convert to fraction form
    57,208.88/78,945 = 32,060/x
  3. Step 3: Cross multiply
    57,208.88x = 78,945 × 32,060
  4. Step 4: Simplify right side
    57,208.88x = 2,530,976,700
  5. Step 5: Solve for x
    x = 2,530,976,700/57,208.88
  6. Step 6: Final answer
    x = 44,240.98

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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.