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Finding the Fourth Proportional to 353,194.65, 529,791.81 and 103,876.65

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Solution

The fourth proportional to 353,194.65, 529,791.81 and 103,876.65 is: 155,814.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,194.65 : 529,791.81 = 103,876.65 : x
  2. Step 2: Convert to fraction form
    353,194.65/529,791.81 = 103,876.65/x
  3. Step 3: Cross multiply
    353,194.65x = 529,791.81 × 103,876.65
  4. Step 4: Simplify right side
    353,194.65x = 55,032,998,420.24
  5. Step 5: Solve for x
    x = 55,032,998,420.24/353,194.65
  6. Step 6: Final answer
    x = 155,814.93

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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.