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Finding the Fourth Proportional to 356,476.80, 534,796.20 and 119,843.40

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Solution

The fourth proportional to 356,476.80, 534,796.20 and 119,843.40 is: 179,792.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,476.80 : 534,796.20 = 119,843.40 : x
  2. Step 2: Convert to fraction form
    356,476.80/534,796.20 = 119,843.40/x
  3. Step 3: Cross multiply
    356,476.80x = 534,796.20 × 119,843.40
  4. Step 4: Simplify right side
    356,476.80x = 64,091,794,915.08
  5. Step 5: Solve for x
    x = 64,091,794,915.08/356,476.80
  6. Step 6: Final answer
    x = 179,792.33

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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.