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Finding the Fourth Proportional to 303,323.30, 454,984.95 and 81,707.30

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Solution

The fourth proportional to 303,323.30, 454,984.95 and 81,707.30 is: 122,560.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,323.30 : 454,984.95 = 81,707.30 : x
  2. Step 2: Convert to fraction form
    303,323.30/454,984.95 = 81,707.30/x
  3. Step 3: Cross multiply
    303,323.30x = 454,984.95 × 81,707.30
  4. Step 4: Simplify right side
    303,323.30x = 37,175,591,805.14
  5. Step 5: Solve for x
    x = 37,175,591,805.14/303,323.30
  6. Step 6: Final answer
    x = 122,560.95

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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.