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Finding the Fourth Proportional to 134,672.93, 185,840.61 and 74,246.12

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Solution

The fourth proportional to 134,672.93, 185,840.61 and 74,246.12 is: 102,455.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,672.93 : 185,840.61 = 74,246.12 : x
  2. Step 2: Convert to fraction form
    134,672.93/185,840.61 = 74,246.12/x
  3. Step 3: Cross multiply
    134,672.93x = 185,840.61 × 74,246.12
  4. Step 4: Simplify right side
    134,672.93x = 13,797,943,301.73
  5. Step 5: Solve for x
    x = 13,797,943,301.73/134,672.93
  6. Step 6: Final answer
    x = 102,455.21

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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.