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Finding the Fourth Proportional to 363,531, 545,406.66 and 186,163.68

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Solution

The fourth proportional to 363,531, 545,406.66 and 186,163.68 is: 279,301.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,531 : 545,406.66 = 186,163.68 : x
  2. Step 2: Convert to fraction form
    363,531/545,406.66 = 186,163.68/x
  3. Step 3: Cross multiply
    363,531x = 545,406.66 × 186,163.68
  4. Step 4: Simplify right side
    363,531x = 101,534,910,922.11
  5. Step 5: Solve for x
    x = 101,534,910,922.11/363,531
  6. Step 6: Final answer
    x = 279,301.93

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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.