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Finding the Fourth Proportional to 274,608.80, 411,394.80 and 141,034.40

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Solution

The fourth proportional to 274,608.80, 411,394.80 and 141,034.40 is: 211,285.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,608.80 : 411,394.80 = 141,034.40 : x
  2. Step 2: Convert to fraction form
    274,608.80/411,394.80 = 141,034.40/x
  3. Step 3: Cross multiply
    274,608.80x = 411,394.80 × 141,034.40
  4. Step 4: Simplify right side
    274,608.80x = 58,020,818,781.12
  5. Step 5: Solve for x
    x = 58,020,818,781.12/274,608.80
  6. Step 6: Final answer
    x = 211,285.36

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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.