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Finding the Fourth Proportional to 242,469.18, 334,617.83 and 135,039.19

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Solution

The fourth proportional to 242,469.18, 334,617.83 and 135,039.19 is: 186,359.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,469.18 : 334,617.83 = 135,039.19 : x
  2. Step 2: Convert to fraction form
    242,469.18/334,617.83 = 135,039.19/x
  3. Step 3: Cross multiply
    242,469.18x = 334,617.83 × 135,039.19
  4. Step 4: Simplify right side
    242,469.18x = 45,186,520,722.76
  5. Step 5: Solve for x
    x = 45,186,520,722.76/242,469.18
  6. Step 6: Final answer
    x = 186,359.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.