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Finding the Fourth Proportional to 159,447.60, 239,171.40 and 48,639.60

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Solution

The fourth proportional to 159,447.60, 239,171.40 and 48,639.60 is: 72,959.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,447.60 : 239,171.40 = 48,639.60 : x
  2. Step 2: Convert to fraction form
    159,447.60/239,171.40 = 48,639.60/x
  3. Step 3: Cross multiply
    159,447.60x = 239,171.40 × 48,639.60
  4. Step 4: Simplify right side
    159,447.60x = 11,633,201,227.44
  5. Step 5: Solve for x
    x = 11,633,201,227.44/159,447.60
  6. Step 6: Final answer
    x = 72,959.40

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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.