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Finding the Fourth Proportional to 418,174.16, 627,257.40 and 168,852.56

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Solution

The fourth proportional to 418,174.16, 627,257.40 and 168,852.56 is: 253,277.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,174.16 : 627,257.40 = 168,852.56 : x
  2. Step 2: Convert to fraction form
    418,174.16/627,257.40 = 168,852.56/x
  3. Step 3: Cross multiply
    418,174.16x = 627,257.40 × 168,852.56
  4. Step 4: Simplify right side
    418,174.16x = 105,914,017,768.94
  5. Step 5: Solve for x
    x = 105,914,017,768.94/418,174.16
  6. Step 6: Final answer
    x = 253,277.29

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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.