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Finding the Fourth Proportional to 303,395.32, 455,296.11 and 125,902.51

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Solution

The fourth proportional to 303,395.32, 455,296.11 and 125,902.51 is: 188,938.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,395.32 : 455,296.11 = 125,902.51 : x
  2. Step 2: Convert to fraction form
    303,395.32/455,296.11 = 125,902.51/x
  3. Step 3: Cross multiply
    303,395.32x = 455,296.11 × 125,902.51
  4. Step 4: Simplify right side
    303,395.32x = 57,322,923,042.24
  5. Step 5: Solve for x
    x = 57,322,923,042.24/303,395.32
  6. Step 6: Final answer
    x = 188,938.06

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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.