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Finding the Fourth Proportional to 173,575.90, 260,361.42 and 68,395.78

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Solution

The fourth proportional to 173,575.90, 260,361.42 and 68,395.78 is: 102,592.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,575.90 : 260,361.42 = 68,395.78 : x
  2. Step 2: Convert to fraction form
    173,575.90/260,361.42 = 68,395.78/x
  3. Step 3: Cross multiply
    173,575.90x = 260,361.42 × 68,395.78
  4. Step 4: Simplify right side
    173,575.90x = 17,807,622,402.81
  5. Step 5: Solve for x
    x = 17,807,622,402.81/173,575.90
  6. Step 6: Final answer
    x = 102,592.71

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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.