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Finding the Fourth Proportional to 227,638.68, 314,171.10 and 127,057.56

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Solution

The fourth proportional to 227,638.68, 314,171.10 and 127,057.56 is: 175,356.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,638.68 : 314,171.10 = 127,057.56 : x
  2. Step 2: Convert to fraction form
    227,638.68/314,171.10 = 127,057.56/x
  3. Step 3: Cross multiply
    227,638.68x = 314,171.10 × 127,057.56
  4. Step 4: Simplify right side
    227,638.68x = 39,917,813,388.52
  5. Step 5: Solve for x
    x = 39,917,813,388.52/227,638.68
  6. Step 6: Final answer
    x = 175,356.02

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1.5x scale

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.