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Finding the Fourth Proportional to 274,042.08, 411,063.30 and 74,362.50

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Solution

The fourth proportional to 274,042.08, 411,063.30 and 74,362.50 is: 111,543.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,042.08 : 411,063.30 = 74,362.50 : x
  2. Step 2: Convert to fraction form
    274,042.08/411,063.30 = 74,362.50/x
  3. Step 3: Cross multiply
    274,042.08x = 411,063.30 × 74,362.50
  4. Step 4: Simplify right side
    274,042.08x = 30,567,694,646.25
  5. Step 5: Solve for x
    x = 30,567,694,646.25/274,042.08
  6. Step 6: Final answer
    x = 111,543.80

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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.