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Finding the Fourth Proportional to 363,689, 545,552.94 and 114,390.44

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Solution

The fourth proportional to 363,689, 545,552.94 and 114,390.44 is: 171,591.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,689 : 545,552.94 = 114,390.44 : x
  2. Step 2: Convert to fraction form
    363,689/545,552.94 = 114,390.44/x
  3. Step 3: Cross multiply
    363,689x = 545,552.94 × 114,390.44
  4. Step 4: Simplify right side
    363,689x = 62,406,040,849.89
  5. Step 5: Solve for x
    x = 62,406,040,849.89/363,689
  6. Step 6: Final answer
    x = 171,591.77

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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.