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Finding the Fourth Proportional to 134,672.63, 185,839.52 and 74,243.79

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Solution

The fourth proportional to 134,672.63, 185,839.52 and 74,243.79 is: 102,451.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,672.63 : 185,839.52 = 74,243.79 : x
  2. Step 2: Convert to fraction form
    134,672.63/185,839.52 = 74,243.79/x
  3. Step 3: Cross multiply
    134,672.63x = 185,839.52 × 74,243.79
  4. Step 4: Simplify right side
    134,672.63x = 13,797,429,925.36
  5. Step 5: Solve for x
    x = 13,797,429,925.36/134,672.63
  6. Step 6: Final answer
    x = 102,451.63

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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.