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Finding the Fourth Proportional to 116,958.72, 176,085.12 and 80,263.68

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Solution

The fourth proportional to 116,958.72, 176,085.12 and 80,263.68 is: 120,839.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,958.72 : 176,085.12 = 80,263.68 : x
  2. Step 2: Convert to fraction form
    116,958.72/176,085.12 = 80,263.68/x
  3. Step 3: Cross multiply
    116,958.72x = 176,085.12 × 80,263.68
  4. Step 4: Simplify right side
    116,958.72x = 14,133,239,724.44
  5. Step 5: Solve for x
    x = 14,133,239,724.44/116,958.72
  6. Step 6: Final answer
    x = 120,839.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.