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Finding the Fourth Proportional to 72,134.39, 108,203.78 and 24,748.82

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Solution

The fourth proportional to 72,134.39, 108,203.78 and 24,748.82 is: 37,123.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,134.39 : 108,203.78 = 24,748.82 : x
  2. Step 2: Convert to fraction form
    72,134.39/108,203.78 = 24,748.82/x
  3. Step 3: Cross multiply
    72,134.39x = 108,203.78 × 24,748.82
  4. Step 4: Simplify right side
    72,134.39x = 2,677,915,444.63
  5. Step 5: Solve for x
    x = 2,677,915,444.63/72,134.39
  6. Step 6: Final answer
    x = 37,123.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.