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Finding the Fourth Proportional to 475,361.87, 713,042.60 and 115,530.81

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Solution

The fourth proportional to 475,361.87, 713,042.60 and 115,530.81 is: 173,296.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,361.87 : 713,042.60 = 115,530.81 : x
  2. Step 2: Convert to fraction form
    475,361.87/713,042.60 = 115,530.81/x
  3. Step 3: Cross multiply
    475,361.87x = 713,042.60 × 115,530.81
  4. Step 4: Simplify right side
    475,361.87x = 82,378,385,890.94
  5. Step 5: Solve for x
    x = 82,378,385,890.94/475,361.87
  6. Step 6: Final answer
    x = 173,296.16

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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.