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Finding the Fourth Proportional to 167,254.72, 230,919.60 and 103,660

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Solution

The fourth proportional to 167,254.72, 230,919.60 and 103,660 is: 143,117.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,254.72 : 230,919.60 = 103,660 : x
  2. Step 2: Convert to fraction form
    167,254.72/230,919.60 = 103,660/x
  3. Step 3: Cross multiply
    167,254.72x = 230,919.60 × 103,660
  4. Step 4: Simplify right side
    167,254.72x = 23,937,125,736
  5. Step 5: Solve for x
    x = 23,937,125,736/167,254.72
  6. Step 6: Final answer
    x = 143,117.79

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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.