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Finding the Fourth Proportional to 166,955.85, 230,433.81 and 153,505.80

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Solution

The fourth proportional to 166,955.85, 230,433.81 and 153,505.80 is: 211,869.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,955.85 : 230,433.81 = 153,505.80 : x
  2. Step 2: Convert to fraction form
    166,955.85/230,433.81 = 153,505.80/x
  3. Step 3: Cross multiply
    166,955.85x = 230,433.81 × 153,505.80
  4. Step 4: Simplify right side
    166,955.85x = 35,372,926,351.10
  5. Step 5: Solve for x
    x = 35,372,926,351.10/166,955.85
  6. Step 6: Final answer
    x = 211,869.94

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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.