Home / 165,529.20-248,293.80-54,721.20

Finding the Fourth Proportional to 165,529.20, 248,293.80 and 54,721.20

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Solution

The fourth proportional to 165,529.20, 248,293.80 and 54,721.20 is: 82,081.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,529.20 : 248,293.80 = 54,721.20 : x
  2. Step 2: Convert to fraction form
    165,529.20/248,293.80 = 54,721.20/x
  3. Step 3: Cross multiply
    165,529.20x = 248,293.80 × 54,721.20
  4. Step 4: Simplify right side
    165,529.20x = 13,586,934,688.56
  5. Step 5: Solve for x
    x = 13,586,934,688.56/165,529.20
  6. Step 6: Final answer
    x = 82,081.80

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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.