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Finding the Fourth Proportional to 135,016.98, 186,324.88 and 74,589.24

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Solution

The fourth proportional to 135,016.98, 186,324.88 and 74,589.24 is: 102,933.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,016.98 : 186,324.88 = 74,589.24 : x
  2. Step 2: Convert to fraction form
    135,016.98/186,324.88 = 74,589.24/x
  3. Step 3: Cross multiply
    135,016.98x = 186,324.88 × 74,589.24
  4. Step 4: Simplify right side
    135,016.98x = 13,897,831,192.29
  5. Step 5: Solve for x
    x = 13,897,831,192.29/135,016.98
  6. Step 6: Final answer
    x = 102,933.95

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1.5x scale

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.