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Finding the Fourth Proportional to 368,159.52, 551,517.57 and 190,782.89

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Solution

The fourth proportional to 368,159.52, 551,517.57 and 190,782.89 is: 285,800.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,159.52 : 551,517.57 = 190,782.89 : x
  2. Step 2: Convert to fraction form
    368,159.52/551,517.57 = 190,782.89/x
  3. Step 3: Cross multiply
    368,159.52x = 551,517.57 × 190,782.89
  4. Step 4: Simplify right side
    368,159.52x = 105,220,115,890.38
  5. Step 5: Solve for x
    x = 105,220,115,890.38/368,159.52
  6. Step 6: Final answer
    x = 285,800.34

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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.