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Finding the Fourth Proportional to 325,773.40, 488,643.90 and 168,017.80

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Solution

The fourth proportional to 325,773.40, 488,643.90 and 168,017.80 is: 252,018.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,773.40 : 488,643.90 = 168,017.80 : x
  2. Step 2: Convert to fraction form
    325,773.40/488,643.90 = 168,017.80/x
  3. Step 3: Cross multiply
    325,773.40x = 488,643.90 × 168,017.80
  4. Step 4: Simplify right side
    325,773.40x = 82,100,873,061.42
  5. Step 5: Solve for x
    x = 82,100,873,061.42/325,773.40
  6. Step 6: Final answer
    x = 252,018.34

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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.