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Finding the Fourth Proportional to 165,487.20, 248,230.80 and 160,879.20

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Solution

The fourth proportional to 165,487.20, 248,230.80 and 160,879.20 is: 241,318.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,487.20 : 248,230.80 = 160,879.20 : x
  2. Step 2: Convert to fraction form
    165,487.20/248,230.80 = 160,879.20/x
  3. Step 3: Cross multiply
    165,487.20x = 248,230.80 × 160,879.20
  4. Step 4: Simplify right side
    165,487.20x = 39,935,172,519.36
  5. Step 5: Solve for x
    x = 39,935,172,519.36/165,487.20
  6. Step 6: Final answer
    x = 241,318.80

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1.5x scale

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.