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Finding the Fourth Proportional to 171,182.16, 256,834.04 and 76,403.76

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Solution

The fourth proportional to 171,182.16, 256,834.04 and 76,403.76 is: 114,632.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,182.16 : 256,834.04 = 76,403.76 : x
  2. Step 2: Convert to fraction form
    171,182.16/256,834.04 = 76,403.76/x
  3. Step 3: Cross multiply
    171,182.16x = 256,834.04 × 76,403.76
  4. Step 4: Simplify right side
    171,182.16x = 19,623,086,351.99
  5. Step 5: Solve for x
    x = 19,623,086,351.99/171,182.16
  6. Step 6: Final answer
    x = 114,632.78

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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.