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Finding the Fourth Proportional to 457,202.60, 685,803.90 and 161,714.60

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Solution

The fourth proportional to 457,202.60, 685,803.90 and 161,714.60 is: 242,571.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,202.60 : 685,803.90 = 161,714.60 : x
  2. Step 2: Convert to fraction form
    457,202.60/685,803.90 = 161,714.60/x
  3. Step 3: Cross multiply
    457,202.60x = 685,803.90 × 161,714.60
  4. Step 4: Simplify right side
    457,202.60x = 110,904,503,366.94
  5. Step 5: Solve for x
    x = 110,904,503,366.94/457,202.60
  6. Step 6: Final answer
    x = 242,571.90

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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.