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Finding the Fourth Proportional to 227,640.65, 341,498.03 and 85,496.99

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Solution

The fourth proportional to 227,640.65, 341,498.03 and 85,496.99 is: 128,259.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,640.65 : 341,498.03 = 85,496.99 : x
  2. Step 2: Convert to fraction form
    227,640.65/341,498.03 = 85,496.99/x
  3. Step 3: Cross multiply
    227,640.65x = 341,498.03 × 85,496.99
  4. Step 4: Simplify right side
    227,640.65x = 29,197,051,520.95
  5. Step 5: Solve for x
    x = 29,197,051,520.95/227,640.65
  6. Step 6: Final answer
    x = 128,259.40

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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.