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Finding the Fourth Proportional to 244,443.60, 366,665.40 and 86,651.55

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Solution

The fourth proportional to 244,443.60, 366,665.40 and 86,651.55 is: 129,977.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,443.60 : 366,665.40 = 86,651.55 : x
  2. Step 2: Convert to fraction form
    244,443.60/366,665.40 = 86,651.55/x
  3. Step 3: Cross multiply
    244,443.60x = 366,665.40 × 86,651.55
  4. Step 4: Simplify right side
    244,443.60x = 31,772,125,241.37
  5. Step 5: Solve for x
    x = 31,772,125,241.37/244,443.60
  6. Step 6: Final answer
    x = 129,977.33

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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.