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Finding the Fourth Proportional to 418,060.31, 627,047.76 and 114,481.48

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Solution

The fourth proportional to 418,060.31, 627,047.76 and 114,481.48 is: 171,710.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,060.31 : 627,047.76 = 114,481.48 : x
  2. Step 2: Convert to fraction form
    418,060.31/627,047.76 = 114,481.48/x
  3. Step 3: Cross multiply
    418,060.31x = 627,047.76 × 114,481.48
  4. Step 4: Simplify right side
    418,060.31x = 71,785,352,903.37
  5. Step 5: Solve for x
    x = 71,785,352,903.37/418,060.31
  6. Step 6: Final answer
    x = 171,710.52

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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.