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Finding the Fourth Proportional to 159,258.40, 238,873.20 and 54,080.80

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Solution

The fourth proportional to 159,258.40, 238,873.20 and 54,080.80 is: 81,116.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,258.40 : 238,873.20 = 54,080.80 : x
  2. Step 2: Convert to fraction form
    159,258.40/238,873.20 = 54,080.80/x
  3. Step 3: Cross multiply
    159,258.40x = 238,873.20 × 54,080.80
  4. Step 4: Simplify right side
    159,258.40x = 12,918,453,754.56
  5. Step 5: Solve for x
    x = 12,918,453,754.56/159,258.40
  6. Step 6: Final answer
    x = 81,116.31

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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.