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Finding the Fourth Proportional to 334,588.40, 501,874.39 and 81,866.88

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Solution

The fourth proportional to 334,588.40, 501,874.39 and 81,866.88 is: 122,798.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,588.40 : 501,874.39 = 81,866.88 : x
  2. Step 2: Convert to fraction form
    334,588.40/501,874.39 = 81,866.88/x
  3. Step 3: Cross multiply
    334,588.40x = 501,874.39 × 81,866.88
  4. Step 4: Simplify right side
    334,588.40x = 41,086,890,461.20
  5. Step 5: Solve for x
    x = 41,086,890,461.20/334,588.40
  6. Step 6: Final answer
    x = 122,798.31

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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.