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Finding the Fourth Proportional to 133,047.54, 183,604.17 and 72,617.68

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Solution

The fourth proportional to 133,047.54, 183,604.17 and 72,617.68 is: 100,211.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,047.54 : 183,604.17 = 72,617.68 : x
  2. Step 2: Convert to fraction form
    133,047.54/183,604.17 = 72,617.68/x
  3. Step 3: Cross multiply
    133,047.54x = 183,604.17 × 72,617.68
  4. Step 4: Simplify right side
    133,047.54x = 13,332,908,863.73
  5. Step 5: Solve for x
    x = 13,332,908,863.73/133,047.54
  6. Step 6: Final answer
    x = 100,211.62

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1.5x scale

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.