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Finding the Fourth Proportional to 57,665.40, 86,568.30 and 36,605.40

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Solution

The fourth proportional to 57,665.40, 86,568.30 and 36,605.40 is: 54,952.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,665.40 : 86,568.30 = 36,605.40 : x
  2. Step 2: Convert to fraction form
    57,665.40/86,568.30 = 36,605.40/x
  3. Step 3: Cross multiply
    57,665.40x = 86,568.30 × 36,605.40
  4. Step 4: Simplify right side
    57,665.40x = 3,168,867,248.82
  5. Step 5: Solve for x
    x = 3,168,867,248.82/57,665.40
  6. Step 6: Final answer
    x = 54,952.66

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