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Finding the Fourth Proportional to 159,296.88, 238,979.88 and 48,486

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Solution

The fourth proportional to 159,296.88, 238,979.88 and 48,486 is: 72,739.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,296.88 : 238,979.88 = 48,486 : x
  2. Step 2: Convert to fraction form
    159,296.88/238,979.88 = 48,486/x
  3. Step 3: Cross multiply
    159,296.88x = 238,979.88 × 48,486
  4. Step 4: Simplify right side
    159,296.88x = 11,587,178,461.68
  5. Step 5: Solve for x
    x = 11,587,178,461.68/159,296.88
  6. Step 6: Final answer
    x = 72,739.52

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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.