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Finding the Fourth Proportional to 303,677.25, 455,792.13 and 161,641.94

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Solution

The fourth proportional to 303,677.25, 455,792.13 and 161,641.94 is: 242,609.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,677.25 : 455,792.13 = 161,641.94 : x
  2. Step 2: Convert to fraction form
    303,677.25/455,792.13 = 161,641.94/x
  3. Step 3: Cross multiply
    303,677.25x = 455,792.13 × 161,641.94
  4. Step 4: Simplify right side
    303,677.25x = 73,675,121,850.97
  5. Step 5: Solve for x
    x = 73,675,121,850.97/303,677.25
  6. Step 6: Final answer
    x = 242,609.95

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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.