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Finding the Fourth Proportional to 54,545.60, 81,770.40 and 36,958.40

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Solution

The fourth proportional to 54,545.60, 81,770.40 and 36,958.40 is: 55,405.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,545.60 : 81,770.40 = 36,958.40 : x
  2. Step 2: Convert to fraction form
    54,545.60/81,770.40 = 36,958.40/x
  3. Step 3: Cross multiply
    54,545.60x = 81,770.40 × 36,958.40
  4. Step 4: Simplify right side
    54,545.60x = 3,022,103,151.36
  5. Step 5: Solve for x
    x = 3,022,103,151.36/54,545.60
  6. Step 6: Final answer
    x = 55,405.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.