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Finding the Fourth Proportional to 273,957.20, 411,324.60 and 168,981.20

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Solution

The fourth proportional to 273,957.20, 411,324.60 and 168,981.20 is: 253,711.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,957.20 : 411,324.60 = 168,981.20 : x
  2. Step 2: Convert to fraction form
    273,957.20/411,324.60 = 168,981.20/x
  3. Step 3: Cross multiply
    273,957.20x = 411,324.60 × 168,981.20
  4. Step 4: Simplify right side
    273,957.20x = 69,506,124,497.52
  5. Step 5: Solve for x
    x = 69,506,124,497.52/273,957.20
  6. Step 6: Final answer
    x = 253,711.62

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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.