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Finding the Fourth Proportional to 217,191.72, 299,546.87 and 152,873.87

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Solution

The fourth proportional to 217,191.72, 299,546.87 and 152,873.87 is: 210,840.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,191.72 : 299,546.87 = 152,873.87 : x
  2. Step 2: Convert to fraction form
    217,191.72/299,546.87 = 152,873.87/x
  3. Step 3: Cross multiply
    217,191.72x = 299,546.87 × 152,873.87
  4. Step 4: Simplify right side
    217,191.72x = 45,792,889,247.78
  5. Step 5: Solve for x
    x = 45,792,889,247.78/217,191.72
  6. Step 6: Final answer
    x = 210,840.86

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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.