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Finding the Fourth Proportional to 293,090.40, 439,586.40 and 82,679.04

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Solution

The fourth proportional to 293,090.40, 439,586.40 and 82,679.04 is: 124,004.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,090.40 : 439,586.40 = 82,679.04 : x
  2. Step 2: Convert to fraction form
    293,090.40/439,586.40 = 82,679.04/x
  3. Step 3: Cross multiply
    293,090.40x = 439,586.40 × 82,679.04
  4. Step 4: Simplify right side
    293,090.40x = 36,344,581,549.06
  5. Step 5: Solve for x
    x = 36,344,581,549.06/293,090.40
  6. Step 6: Final answer
    x = 124,004.68

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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.