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Finding the Fourth Proportional to 171,164.06, 256,806.92 and 76,385.62

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Solution

The fourth proportional to 171,164.06, 256,806.92 and 76,385.62 is: 114,605.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,164.06 : 256,806.92 = 76,385.62 : x
  2. Step 2: Convert to fraction form
    171,164.06/256,806.92 = 76,385.62/x
  3. Step 3: Cross multiply
    171,164.06x = 256,806.92 × 76,385.62
  4. Step 4: Simplify right side
    171,164.06x = 19,616,355,804.49
  5. Step 5: Solve for x
    x = 19,616,355,804.49/171,164.06
  6. Step 6: Final answer
    x = 114,605.58

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1.5x scale

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.