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Finding the Fourth Proportional to 273,651.60, 410,474.54 and 86,663.10

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Solution

The fourth proportional to 273,651.60, 410,474.54 and 86,663.10 is: 129,993.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,651.60 : 410,474.54 = 86,663.10 : x
  2. Step 2: Convert to fraction form
    273,651.60/410,474.54 = 86,663.10/x
  3. Step 3: Cross multiply
    273,651.60x = 410,474.54 × 86,663.10
  4. Step 4: Simplify right side
    273,651.60x = 35,572,996,107.47
  5. Step 5: Solve for x
    x = 35,572,996,107.47/273,651.60
  6. Step 6: Final answer
    x = 129,993.74

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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.