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Finding the Fourth Proportional to 347,454.80, 520,890.60 and 181,242.80

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Solution

The fourth proportional to 347,454.80, 520,890.60 and 181,242.80 is: 271,712.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,454.80 : 520,890.60 = 181,242.80 : x
  2. Step 2: Convert to fraction form
    347,454.80/520,890.60 = 181,242.80/x
  3. Step 3: Cross multiply
    347,454.80x = 520,890.60 × 181,242.80
  4. Step 4: Simplify right side
    347,454.80x = 94,407,670,837.68
  5. Step 5: Solve for x
    x = 94,407,670,837.68/347,454.80
  6. Step 6: Final answer
    x = 271,712.09

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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.