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Finding the Fourth Proportional to 293,231.76, 439,539.84 and 124,712.88

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Solution

The fourth proportional to 293,231.76, 439,539.84 and 124,712.88 is: 186,938.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,231.76 : 439,539.84 = 124,712.88 : x
  2. Step 2: Convert to fraction form
    293,231.76/439,539.84 = 124,712.88/x
  3. Step 3: Cross multiply
    293,231.76x = 439,539.84 × 124,712.88
  4. Step 4: Simplify right side
    293,231.76x = 54,816,279,321.14
  5. Step 5: Solve for x
    x = 54,816,279,321.14/293,231.76
  6. Step 6: Final answer
    x = 186,938.41

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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.