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Finding the Fourth Proportional to 359,305.38, 539,007.28 and 122,584.50

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Solution

The fourth proportional to 359,305.38, 539,007.28 and 122,584.50 is: 183,893.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,305.38 : 539,007.28 = 122,584.50 : x
  2. Step 2: Convert to fraction form
    359,305.38/539,007.28 = 122,584.50/x
  3. Step 3: Cross multiply
    359,305.38x = 539,007.28 × 122,584.50
  4. Step 4: Simplify right side
    359,305.38x = 66,073,937,608.70
  5. Step 5: Solve for x
    x = 66,073,937,608.70/359,305.38
  6. Step 6: Final answer
    x = 183,893.54

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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.