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Finding the Fourth Proportional to 354,606.21, 532,065.33 and 186,086.97

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Solution

The fourth proportional to 354,606.21, 532,065.33 and 186,086.97 is: 279,212.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,606.21 : 532,065.33 = 186,086.97 : x
  2. Step 2: Convert to fraction form
    354,606.21/532,065.33 = 186,086.97/x
  3. Step 3: Cross multiply
    354,606.21x = 532,065.33 × 186,086.97
  4. Step 4: Simplify right side
    354,606.21x = 99,010,425,101.75
  5. Step 5: Solve for x
    x = 99,010,425,101.75/354,606.21
  6. Step 6: Final answer
    x = 279,212.33

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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.