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Finding the Fourth Proportional to 134,684.98, 185,873.13 and 74,268.50

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Solution

The fourth proportional to 134,684.98, 185,873.13 and 74,268.50 is: 102,494.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,684.98 : 185,873.13 = 74,268.50 : x
  2. Step 2: Convert to fraction form
    134,684.98/185,873.13 = 74,268.50/x
  3. Step 3: Cross multiply
    134,684.98x = 185,873.13 × 74,268.50
  4. Step 4: Simplify right side
    134,684.98x = 13,804,517,626.04
  5. Step 5: Solve for x
    x = 13,804,517,626.04/134,684.98
  6. Step 6: Final answer
    x = 102,494.86

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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.