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Finding the Fourth Proportional to 119,589.25, 165,025.74 and 65,871.26

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Solution

The fourth proportional to 119,589.25, 165,025.74 and 65,871.26 is: 90,898.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,589.25 : 165,025.74 = 65,871.26 : x
  2. Step 2: Convert to fraction form
    119,589.25/165,025.74 = 65,871.26/x
  3. Step 3: Cross multiply
    119,589.25x = 165,025.74 × 65,871.26
  4. Step 4: Simplify right side
    119,589.25x = 10,870,453,426.23
  5. Step 5: Solve for x
    x = 10,870,453,426.23/119,589.25
  6. Step 6: Final answer
    x = 90,898.25

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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.