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Finding the Fourth Proportional to 134,615.73, 185,770.44 and 77,250.49

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Solution

The fourth proportional to 134,615.73, 185,770.44 and 77,250.49 is: 106,606.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,615.73 : 185,770.44 = 77,250.49 : x
  2. Step 2: Convert to fraction form
    134,615.73/185,770.44 = 77,250.49/x
  3. Step 3: Cross multiply
    134,615.73x = 185,770.44 × 77,250.49
  4. Step 4: Simplify right side
    134,615.73x = 14,350,857,517.52
  5. Step 5: Solve for x
    x = 14,350,857,517.52/134,615.73
  6. Step 6: Final answer
    x = 106,606.10

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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.