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Finding the Fourth Proportional to 218,411.70, 327,617.55 and 173,796.90

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Solution

The fourth proportional to 218,411.70, 327,617.55 and 173,796.90 is: 260,695.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,411.70 : 327,617.55 = 173,796.90 : x
  2. Step 2: Convert to fraction form
    218,411.70/327,617.55 = 173,796.90/x
  3. Step 3: Cross multiply
    218,411.70x = 327,617.55 × 173,796.90
  4. Step 4: Simplify right side
    218,411.70x = 56,938,914,575.60
  5. Step 5: Solve for x
    x = 56,938,914,575.60/218,411.70
  6. Step 6: Final answer
    x = 260,695.35

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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.