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Finding the Fourth Proportional to 363,603.18, 545,429.61 and 123,619.38

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Solution

The fourth proportional to 363,603.18, 545,429.61 and 123,619.38 is: 185,437.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,603.18 : 545,429.61 = 123,619.38 : x
  2. Step 2: Convert to fraction form
    363,603.18/545,429.61 = 123,619.38/x
  3. Step 3: Cross multiply
    363,603.18x = 545,429.61 × 123,619.38
  4. Step 4: Simplify right side
    363,603.18x = 67,425,670,221.84
  5. Step 5: Solve for x
    x = 67,425,670,221.84/363,603.18
  6. Step 6: Final answer
    x = 185,437.52

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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.