Home / 165,805.20-248,707.80-54,997.20

Finding the Fourth Proportional to 165,805.20, 248,707.80 and 54,997.20

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Solution

The fourth proportional to 165,805.20, 248,707.80 and 54,997.20 is: 82,495.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,805.20 : 248,707.80 = 54,997.20 : x
  2. Step 2: Convert to fraction form
    165,805.20/248,707.80 = 54,997.20/x
  3. Step 3: Cross multiply
    165,805.20x = 248,707.80 × 54,997.20
  4. Step 4: Simplify right side
    165,805.20x = 13,678,232,618.16
  5. Step 5: Solve for x
    x = 13,678,232,618.16/165,805.20
  6. Step 6: Final answer
    x = 82,495.80

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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.