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Finding the Fourth Proportional to 170,664.64, 235,605.75 and 124,672.64

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Solution

The fourth proportional to 170,664.64, 235,605.75 and 124,672.64 is: 172,112.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,664.64 : 235,605.75 = 124,672.64 : x
  2. Step 2: Convert to fraction form
    170,664.64/235,605.75 = 124,672.64/x
  3. Step 3: Cross multiply
    170,664.64x = 235,605.75 × 124,672.64
  4. Step 4: Simplify right side
    170,664.64x = 29,373,591,163.36
  5. Step 5: Solve for x
    x = 29,373,591,163.36/170,664.64
  6. Step 6: Final answer
    x = 172,112.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.