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Finding the Fourth Proportional to 159,930.48, 239,815.52 and 53,276.97

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Solution

The fourth proportional to 159,930.48, 239,815.52 and 53,276.97 is: 79,888.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,930.48 : 239,815.52 = 53,276.97 : x
  2. Step 2: Convert to fraction form
    159,930.48/239,815.52 = 53,276.97/x
  3. Step 3: Cross multiply
    159,930.48x = 239,815.52 × 53,276.97
  4. Step 4: Simplify right side
    159,930.48x = 12,776,645,097.29
  5. Step 5: Solve for x
    x = 12,776,645,097.29/159,930.48
  6. Step 6: Final answer
    x = 79,888.74

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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.