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Finding the Fourth Proportional to 274,140.40, 411,210.60 and 148,169.20

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Solution

The fourth proportional to 274,140.40, 411,210.60 and 148,169.20 is: 222,253.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,140.40 : 411,210.60 = 148,169.20 : x
  2. Step 2: Convert to fraction form
    274,140.40/411,210.60 = 148,169.20/x
  3. Step 3: Cross multiply
    274,140.40x = 411,210.60 × 148,169.20
  4. Step 4: Simplify right side
    274,140.40x = 60,928,745,633.52
  5. Step 5: Solve for x
    x = 60,928,745,633.52/274,140.40
  6. Step 6: Final answer
    x = 222,253.80

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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.