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Finding the Fourth Proportional to 227,990.88, 314,617.68 and 126,011.12

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Solution

The fourth proportional to 227,990.88, 314,617.68 and 126,011.12 is: 173,889.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,990.88 : 314,617.68 = 126,011.12 : x
  2. Step 2: Convert to fraction form
    227,990.88/314,617.68 = 126,011.12/x
  3. Step 3: Cross multiply
    227,990.88x = 314,617.68 × 126,011.12
  4. Step 4: Simplify right side
    227,990.88x = 39,645,326,228.60
  5. Step 5: Solve for x
    x = 39,645,326,228.60/227,990.88
  6. Step 6: Final answer
    x = 173,889.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.