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Finding the Fourth Proportional to 273,335.40, 409,857.30 and 115,385.40

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Solution

The fourth proportional to 273,335.40, 409,857.30 and 115,385.40 is: 173,016.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,335.40 : 409,857.30 = 115,385.40 : x
  2. Step 2: Convert to fraction form
    273,335.40/409,857.30 = 115,385.40/x
  3. Step 3: Cross multiply
    273,335.40x = 409,857.30 × 115,385.40
  4. Step 4: Simplify right side
    273,335.40x = 47,291,548,503.42
  5. Step 5: Solve for x
    x = 47,291,548,503.42/273,335.40
  6. Step 6: Final answer
    x = 173,016.55

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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.