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Finding the Fourth Proportional to 207,718.72, 311,453.44 and 95,258.06

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Solution

The fourth proportional to 207,718.72, 311,453.44 and 95,258.06 is: 142,829.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,718.72 : 311,453.44 = 95,258.06 : x
  2. Step 2: Convert to fraction form
    207,718.72/311,453.44 = 95,258.06/x
  3. Step 3: Cross multiply
    207,718.72x = 311,453.44 × 95,258.06
  4. Step 4: Simplify right side
    207,718.72x = 29,668,450,474.73
  5. Step 5: Solve for x
    x = 29,668,450,474.73/207,718.72
  6. Step 6: Final answer
    x = 142,829.93

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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.