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Finding the Fourth Proportional to 248,322.80, 372,484.20 and 82,110.80

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Solution

The fourth proportional to 248,322.80, 372,484.20 and 82,110.80 is: 123,166.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,322.80 : 372,484.20 = 82,110.80 : x
  2. Step 2: Convert to fraction form
    248,322.80/372,484.20 = 82,110.80/x
  3. Step 3: Cross multiply
    248,322.80x = 372,484.20 × 82,110.80
  4. Step 4: Simplify right side
    248,322.80x = 30,584,975,649.36
  5. Step 5: Solve for x
    x = 30,584,975,649.36/248,322.80
  6. Step 6: Final answer
    x = 123,166.20

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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.