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Finding the Fourth Proportional to 274,764.60, 411,950.10 and 106,140.60

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Solution

The fourth proportional to 274,764.60, 411,950.10 and 106,140.60 is: 159,134.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,764.60 : 411,950.10 = 106,140.60 : x
  2. Step 2: Convert to fraction form
    274,764.60/411,950.10 = 106,140.60/x
  3. Step 3: Cross multiply
    274,764.60x = 411,950.10 × 106,140.60
  4. Step 4: Simplify right side
    274,764.60x = 43,724,630,784.06
  5. Step 5: Solve for x
    x = 43,724,630,784.06/274,764.60
  6. Step 6: Final answer
    x = 159,134.88

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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.