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Finding the Fourth Proportional to 115,653.30, 173,361.76 and 65,627.72

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Solution

The fourth proportional to 115,653.30, 173,361.76 and 65,627.72 is: 98,374.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,653.30 : 173,361.76 = 65,627.72 : x
  2. Step 2: Convert to fraction form
    115,653.30/173,361.76 = 65,627.72/x
  3. Step 3: Cross multiply
    115,653.30x = 173,361.76 × 65,627.72
  4. Step 4: Simplify right side
    115,653.30x = 11,377,337,043.99
  5. Step 5: Solve for x
    x = 11,377,337,043.99/115,653.30
  6. Step 6: Final answer
    x = 98,374.51

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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.