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Finding the Fourth Proportional to 347,109.60, 520,081.20 and 169,233.60

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Solution

The fourth proportional to 347,109.60, 520,081.20 and 169,233.60 is: 253,566.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,109.60 : 520,081.20 = 169,233.60 : x
  2. Step 2: Convert to fraction form
    347,109.60/520,081.20 = 169,233.60/x
  3. Step 3: Cross multiply
    347,109.60x = 520,081.20 × 169,233.60
  4. Step 4: Simplify right side
    347,109.60x = 88,015,213,768.32
  5. Step 5: Solve for x
    x = 88,015,213,768.32/347,109.60
  6. Step 6: Final answer
    x = 253,566.06

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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.