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Finding the Fourth Proportional to 641,258.44, 961,859.30 and 167,933.32

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Solution

The fourth proportional to 641,258.44, 961,859.30 and 167,933.32 is: 251,892.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,258.44 : 961,859.30 = 167,933.32 : x
  2. Step 2: Convert to fraction form
    641,258.44/961,859.30 = 167,933.32/x
  3. Step 3: Cross multiply
    641,258.44x = 961,859.30 × 167,933.32
  4. Step 4: Simplify right side
    641,258.44x = 161,528,220,812.58
  5. Step 5: Solve for x
    x = 161,528,220,812.58/641,258.44
  6. Step 6: Final answer
    x = 251,892.55

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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.