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Finding the Fourth Proportional to 134,677.76, 185,846.88 and 74,245.28

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Solution

The fourth proportional to 134,677.76, 185,846.88 and 74,245.28 is: 102,453.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,677.76 : 185,846.88 = 74,245.28 : x
  2. Step 2: Convert to fraction form
    134,677.76/185,846.88 = 74,245.28/x
  3. Step 3: Cross multiply
    134,677.76x = 185,846.88 × 74,245.28
  4. Step 4: Simplify right side
    134,677.76x = 13,798,253,642.73
  5. Step 5: Solve for x
    x = 13,798,253,642.73/134,677.76
  6. Step 6: Final answer
    x = 102,453.84

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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.