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Finding the Fourth Proportional to 303,394.32, 455,294.61 and 125,901.51

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Solution

The fourth proportional to 303,394.32, 455,294.61 and 125,901.51 is: 188,936.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,394.32 : 455,294.61 = 125,901.51 : x
  2. Step 2: Convert to fraction form
    303,394.32/455,294.61 = 125,901.51/x
  3. Step 3: Cross multiply
    303,394.32x = 455,294.61 × 125,901.51
  4. Step 4: Simplify right side
    303,394.32x = 57,322,278,893.86
  5. Step 5: Solve for x
    x = 57,322,278,893.86/303,394.32
  6. Step 6: Final answer
    x = 188,936.56

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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.