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Finding the Fourth Proportional to 303,323.13, 454,984.71 and 81,707.13

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Solution

The fourth proportional to 303,323.13, 454,984.71 and 81,707.13 is: 122,560.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,323.13 : 454,984.71 = 81,707.13 : x
  2. Step 2: Convert to fraction form
    303,323.13/454,984.71 = 81,707.13/x
  3. Step 3: Cross multiply
    303,323.13x = 454,984.71 × 81,707.13
  4. Step 4: Simplify right side
    303,323.13x = 37,175,494,847.98
  5. Step 5: Solve for x
    x = 37,175,494,847.98/303,323.13
  6. Step 6: Final answer
    x = 122,560.70

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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.