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Finding the Fourth Proportional to 227,769.48, 341,663.40 and 85,599.90

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Solution

The fourth proportional to 227,769.48, 341,663.40 and 85,599.90 is: 128,403.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,769.48 : 341,663.40 = 85,599.90 : x
  2. Step 2: Convert to fraction form
    227,769.48/341,663.40 = 85,599.90/x
  3. Step 3: Cross multiply
    227,769.48x = 341,663.40 × 85,599.90
  4. Step 4: Simplify right side
    227,769.48x = 29,246,352,873.66
  5. Step 5: Solve for x
    x = 29,246,352,873.66/227,769.48
  6. Step 6: Final answer
    x = 128,403.30

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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.