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Finding the Fourth Proportional to 354,344.49, 531,401.22 and 117,623.61

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Solution

The fourth proportional to 354,344.49, 531,401.22 and 117,623.61 is: 176,397.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,344.49 : 531,401.22 = 117,623.61 : x
  2. Step 2: Convert to fraction form
    354,344.49/531,401.22 = 117,623.61/x
  3. Step 3: Cross multiply
    354,344.49x = 531,401.22 × 117,623.61
  4. Step 4: Simplify right side
    354,344.49x = 62,505,329,854.80
  5. Step 5: Solve for x
    x = 62,505,329,854.80/354,344.49
  6. Step 6: Final answer
    x = 176,397.07

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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.