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Finding the Fourth Proportional to 276,903.20, 415,549.20 and 119,244.80

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Solution

The fourth proportional to 276,903.20, 415,549.20 and 119,244.80 is: 178,950.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,903.20 : 415,549.20 = 119,244.80 : x
  2. Step 2: Convert to fraction form
    276,903.20/415,549.20 = 119,244.80/x
  3. Step 3: Cross multiply
    276,903.20x = 415,549.20 × 119,244.80
  4. Step 4: Simplify right side
    276,903.20x = 49,552,081,244.16
  5. Step 5: Solve for x
    x = 49,552,081,244.16/276,903.20
  6. Step 6: Final answer
    x = 178,950.92

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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.