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Finding the Fourth Proportional to 166,903.56, 230,321.34 and 98,921.16

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Solution

The fourth proportional to 166,903.56, 230,321.34 and 98,921.16 is: 136,507.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,903.56 : 230,321.34 = 98,921.16 : x
  2. Step 2: Convert to fraction form
    166,903.56/230,321.34 = 98,921.16/x
  3. Step 3: Cross multiply
    166,903.56x = 230,321.34 × 98,921.16
  4. Step 4: Simplify right side
    166,903.56x = 22,783,654,125.55
  5. Step 5: Solve for x
    x = 22,783,654,125.55/166,903.56
  6. Step 6: Final answer
    x = 136,507.90

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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.