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Finding the Fourth Proportional to 167,866.40, 251,799.60 and 129,812.60

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Solution

The fourth proportional to 167,866.40, 251,799.60 and 129,812.60 is: 194,718.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,866.40 : 251,799.60 = 129,812.60 : x
  2. Step 2: Convert to fraction form
    167,866.40/251,799.60 = 129,812.60/x
  3. Step 3: Cross multiply
    167,866.40x = 251,799.60 × 129,812.60
  4. Step 4: Simplify right side
    167,866.40x = 32,686,760,754.96
  5. Step 5: Solve for x
    x = 32,686,760,754.96/167,866.40
  6. Step 6: Final answer
    x = 194,718.90

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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.