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Finding the Fourth Proportional to 273,373.60, 409,138.80 and 251,255.20

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Solution

The fourth proportional to 273,373.60, 409,138.80 and 251,255.20 is: 376,035.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,373.60 : 409,138.80 = 251,255.20 : x
  2. Step 2: Convert to fraction form
    273,373.60/409,138.80 = 251,255.20/x
  3. Step 3: Cross multiply
    273,373.60x = 409,138.80 × 251,255.20
  4. Step 4: Simplify right side
    273,373.60x = 102,798,251,021.76
  5. Step 5: Solve for x
    x = 102,798,251,021.76/273,373.60
  6. Step 6: Final answer
    x = 376,035.77

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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.