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Finding the Fourth Proportional to 220,504.80, 304,271.28 and 124,992.48

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Solution

The fourth proportional to 220,504.80, 304,271.28 and 124,992.48 is: 172,475.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,504.80 : 304,271.28 = 124,992.48 : x
  2. Step 2: Convert to fraction form
    220,504.80/304,271.28 = 124,992.48/x
  3. Step 3: Cross multiply
    220,504.80x = 304,271.28 × 124,992.48
  4. Step 4: Simplify right side
    220,504.80x = 38,031,621,879.97
  5. Step 5: Solve for x
    x = 38,031,621,879.97/220,504.80
  6. Step 6: Final answer
    x = 172,475.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.