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Finding the Fourth Proportional to 359,787.69, 539,840.70 and 188,969.22

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Solution

The fourth proportional to 359,787.69, 539,840.70 and 188,969.22 is: 283,537.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,787.69 : 539,840.70 = 188,969.22 : x
  2. Step 2: Convert to fraction form
    359,787.69/539,840.70 = 188,969.22/x
  3. Step 3: Cross multiply
    359,787.69x = 539,840.70 × 188,969.22
  4. Step 4: Simplify right side
    359,787.69x = 102,013,276,003.25
  5. Step 5: Solve for x
    x = 102,013,276,003.25/359,787.69
  6. Step 6: Final answer
    x = 283,537.43

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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.