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Finding the Fourth Proportional to 359,790.69, 539,845.20 and 188,972.22

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Solution

The fourth proportional to 359,790.69, 539,845.20 and 188,972.22 is: 283,541.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,790.69 : 539,845.20 = 188,972.22 : x
  2. Step 2: Convert to fraction form
    359,790.69/539,845.20 = 188,972.22/x
  3. Step 3: Cross multiply
    359,790.69x = 539,845.20 × 188,972.22
  4. Step 4: Simplify right side
    359,790.69x = 102,015,745,900.34
  5. Step 5: Solve for x
    x = 102,015,745,900.34/359,790.69
  6. Step 6: Final answer
    x = 283,541.93

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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.