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Finding the Fourth Proportional to 170,453.40, 255,717 and 65,272.37

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Solution

The fourth proportional to 170,453.40, 255,717 and 65,272.37 is: 97,922.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,453.40 : 255,717 = 65,272.37 : x
  2. Step 2: Convert to fraction form
    170,453.40/255,717 = 65,272.37/x
  3. Step 3: Cross multiply
    170,453.40x = 255,717 × 65,272.37
  4. Step 4: Simplify right side
    170,453.40x = 16,691,253,360.71
  5. Step 5: Solve for x
    x = 16,691,253,360.71/170,453.40
  6. Step 6: Final answer
    x = 97,922.68

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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.