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Finding the Fourth Proportional to 227,181.31, 340,554.75 and 84,987.97

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Solution

The fourth proportional to 227,181.31, 340,554.75 and 84,987.97 is: 127,400.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,181.31 : 340,554.75 = 84,987.97 : x
  2. Step 2: Convert to fraction form
    227,181.31/340,554.75 = 84,987.97/x
  3. Step 3: Cross multiply
    227,181.31x = 340,554.75 × 84,987.97
  4. Step 4: Simplify right side
    227,181.31x = 28,943,056,876.36
  5. Step 5: Solve for x
    x = 28,943,056,876.36/227,181.31
  6. Step 6: Final answer
    x = 127,400.70

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1.5x scale

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.