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Finding the Fourth Proportional to 166,956.85, 230,435.19 and 153,506.80

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Solution

The fourth proportional to 166,956.85, 230,435.19 and 153,506.80 is: 211,871.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,956.85 : 230,435.19 = 153,506.80 : x
  2. Step 2: Convert to fraction form
    166,956.85/230,435.19 = 153,506.80/x
  3. Step 3: Cross multiply
    166,956.85x = 230,435.19 × 153,506.80
  4. Step 4: Simplify right side
    166,956.85x = 35,373,368,624.29
  5. Step 5: Solve for x
    x = 35,373,368,624.29/166,956.85
  6. Step 6: Final answer
    x = 211,871.32

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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.