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Finding the Fourth Proportional to 274,633.80, 411,432.30 and 141,059.40

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Solution

The fourth proportional to 274,633.80, 411,432.30 and 141,059.40 is: 211,322.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,633.80 : 411,432.30 = 141,059.40 : x
  2. Step 2: Convert to fraction form
    274,633.80/411,432.30 = 141,059.40/x
  3. Step 3: Cross multiply
    274,633.80x = 411,432.30 × 141,059.40
  4. Step 4: Simplify right side
    274,633.80x = 58,036,393,378.62
  5. Step 5: Solve for x
    x = 58,036,393,378.62/274,633.80
  6. Step 6: Final answer
    x = 211,322.84

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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.