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Finding the Fourth Proportional to 147,433.40, 220,825.94 and 121,842.88

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Solution

The fourth proportional to 147,433.40, 220,825.94 and 121,842.88 is: 182,496.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,433.40 : 220,825.94 = 121,842.88 : x
  2. Step 2: Convert to fraction form
    147,433.40/220,825.94 = 121,842.88/x
  3. Step 3: Cross multiply
    147,433.40x = 220,825.94 × 121,842.88
  4. Step 4: Simplify right side
    147,433.40x = 26,906,068,508.31
  5. Step 5: Solve for x
    x = 26,906,068,508.31/147,433.40
  6. Step 6: Final answer
    x = 182,496.43

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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.