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Finding the Fourth Proportional to 227,688.90, 341,739.90 and 115,447.20

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Solution

The fourth proportional to 227,688.90, 341,739.90 and 115,447.20 is: 173,275.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,688.90 : 341,739.90 = 115,447.20 : x
  2. Step 2: Convert to fraction form
    227,688.90/341,739.90 = 115,447.20/x
  3. Step 3: Cross multiply
    227,688.90x = 341,739.90 × 115,447.20
  4. Step 4: Simplify right side
    227,688.90x = 39,452,914,583.28
  5. Step 5: Solve for x
    x = 39,452,914,583.28/227,688.90
  6. Step 6: Final answer
    x = 173,275.53

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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.