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Finding the Fourth Proportional to 454,376.43, 681,564.56 and 121,952.43

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Solution

The fourth proportional to 454,376.43, 681,564.56 and 121,952.43 is: 182,928.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,376.43 : 681,564.56 = 121,952.43 : x
  2. Step 2: Convert to fraction form
    454,376.43/681,564.56 = 121,952.43/x
  3. Step 3: Cross multiply
    454,376.43x = 681,564.56 × 121,952.43
  4. Step 4: Simplify right side
    454,376.43x = 83,118,453,684.12
  5. Step 5: Solve for x
    x = 83,118,453,684.12/454,376.43
  6. Step 6: Final answer
    x = 182,928.62

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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.