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Finding the Fourth Proportional to 165,797.20, 248,695.80 and 54,989.20

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Solution

The fourth proportional to 165,797.20, 248,695.80 and 54,989.20 is: 82,483.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,797.20 : 248,695.80 = 54,989.20 : x
  2. Step 2: Convert to fraction form
    165,797.20/248,695.80 = 54,989.20/x
  3. Step 3: Cross multiply
    165,797.20x = 248,695.80 × 54,989.20
  4. Step 4: Simplify right side
    165,797.20x = 13,675,583,085.36
  5. Step 5: Solve for x
    x = 13,675,583,085.36/165,797.20
  6. Step 6: Final answer
    x = 82,483.80

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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.