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Finding the Fourth Proportional to 160,439.80, 240,654.60 and 76,260.52

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Solution

The fourth proportional to 160,439.80, 240,654.60 and 76,260.52 is: 114,388.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,439.80 : 240,654.60 = 76,260.52 : x
  2. Step 2: Convert to fraction form
    160,439.80/240,654.60 = 76,260.52/x
  3. Step 3: Cross multiply
    160,439.80x = 240,654.60 × 76,260.52
  4. Step 4: Simplify right side
    160,439.80x = 18,352,444,936.39
  5. Step 5: Solve for x
    x = 18,352,444,936.39/160,439.80
  6. Step 6: Final answer
    x = 114,388.36

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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.