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Finding the Fourth Proportional to 418,710.60, 627,698.34 and 166,169.34

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Solution

The fourth proportional to 418,710.60, 627,698.34 and 166,169.34 is: 249,108.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,710.60 : 627,698.34 = 166,169.34 : x
  2. Step 2: Convert to fraction form
    418,710.60/627,698.34 = 166,169.34/x
  3. Step 3: Cross multiply
    418,710.60x = 627,698.34 × 166,169.34
  4. Step 4: Simplify right side
    418,710.60x = 104,304,218,876.90
  5. Step 5: Solve for x
    x = 104,304,218,876.90/418,710.60
  6. Step 6: Final answer
    x = 249,108.14

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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.