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Finding the Fourth Proportional to 169,720.95, 254,581.41 and 43,361.46

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Solution

The fourth proportional to 169,720.95, 254,581.41 and 43,361.46 is: 65,042.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,720.95 : 254,581.41 = 43,361.46 : x
  2. Step 2: Convert to fraction form
    169,720.95/254,581.41 = 43,361.46/x
  3. Step 3: Cross multiply
    169,720.95x = 254,581.41 × 43,361.46
  4. Step 4: Simplify right side
    169,720.95x = 11,039,021,626.46
  5. Step 5: Solve for x
    x = 11,039,021,626.46/169,720.95
  6. Step 6: Final answer
    x = 65,042.19

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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.